diff --git a/backend/coins/btc/sign.go b/backend/coins/btc/sign.go
index ca92b89165..f02805577a 100644
--- a/backend/coins/btc/sign.go
+++ b/backend/coins/btc/sign.go
@@ -24,6 +24,7 @@ import (
 	"github.com/digitalbitbox/bitbox-wallet-app/backend/coins/btc/maketx"
 	"github.com/digitalbitbox/bitbox-wallet-app/backend/coins/btc/transactions"
 	"github.com/digitalbitbox/bitbox-wallet-app/backend/coins/btc/types"
+	"github.com/digitalbitbox/bitbox-wallet-app/backend/coins/coin"
 	"github.com/digitalbitbox/bitbox-wallet-app/backend/signing"
 	"github.com/digitalbitbox/bitbox-wallet-app/util/errp"
 )
@@ -47,6 +48,7 @@ type ProposedTransaction struct {
 	// Signatures collects the signatures, one per transaction input.
 	Signatures []*types.Signature
 	SigHashes  *txscript.TxSigHashes
+	FormatUnit coin.BtcUnit
 }
 
 // signTransaction signs all inputs. It assumes all outputs spent belong to this
@@ -68,6 +70,7 @@ func (account *Account) signTransaction(
 		GetPrevTx:                    getPrevTx,
 		Signatures:                   make([]*types.Signature, len(txProposal.Transaction.TxIn)),
 		SigHashes:                    txscript.NewTxSigHashes(txProposal.Transaction, previousOutputs),
+		FormatUnit:                   account.coin.formatUnit,
 	}
 
 	if err := account.Config().Keystore.SignTransaction(proposedTransaction); err != nil {
diff --git a/backend/devices/bitbox02/keystore.go b/backend/devices/bitbox02/keystore.go
index 03be536ef3..42298d3f61 100644
--- a/backend/devices/bitbox02/keystore.go
+++ b/backend/devices/bitbox02/keystore.go
@@ -416,6 +416,10 @@ func (keystore *keystore) signBTCTransaction(btcProposedTx *btc.ProposedTransact
 		}
 	}
 
+	formatUnit := messages.BTCSignInitRequest_DEFAULT
+	if btcProposedTx.FormatUnit == coinpkg.BtcUnitSats {
+		formatUnit = messages.BTCSignInitRequest_SAT
+	}
 	signatures, err := keystore.device.BTCSign(
 		msgCoin,
 		scriptConfigs,
@@ -425,6 +429,7 @@ func (keystore *keystore) signBTCTransaction(btcProposedTx *btc.ProposedTransact
 			Outputs:  outputs,
 			Locktime: tx.LockTime,
 		},
+		formatUnit,
 	)
 	if firmware.IsErrorAbort(err) {
 		return errp.WithStack(keystorePkg.ErrSigningAborted)
diff --git a/go.mod b/go.mod
index 7a86a4ce57..4ece5656ae 100644
--- a/go.mod
+++ b/go.mod
@@ -8,7 +8,7 @@ require (
 	github.com/btcsuite/btcd/btcutil v1.1.2
 	github.com/btcsuite/btcd/chaincfg/chainhash v1.0.1
 	github.com/cespare/cp v1.1.1 // indirect
-	github.com/digitalbitbox/bitbox02-api-go v0.0.0-20221003094719-2c29561c5a4c
+	github.com/digitalbitbox/bitbox02-api-go v0.0.0-20221027102202-8c31f236c498
 	github.com/ethereum/go-ethereum v1.10.21
 	github.com/flynn/noise v1.0.0
 	github.com/gorilla/mux v1.8.0
diff --git a/go.sum b/go.sum
index c3a32c7d7a..d03a2cd432 100644
--- a/go.sum
+++ b/go.sum
@@ -115,8 +115,8 @@ github.com/deepmap/oapi-codegen v1.8.2/go.mod h1:YLgSKSDv/bZQB7N4ws6luhozi3cEdRk
 github.com/dgrijalva/jwt-go v3.2.0+incompatible/go.mod h1:E3ru+11k8xSBh+hMPgOLZmtrrCbhqsmaPHjLKYnJCaQ=
 github.com/dgryski/go-bitstream v0.0.0-20180413035011-3522498ce2c8/go.mod h1:VMaSuZ+SZcx/wljOQKvp5srsbCiKDEb6K2wC4+PiBmQ=
 github.com/dgryski/go-sip13 v0.0.0-20181026042036-e10d5fee7954/go.mod h1:vAd38F8PWV+bWy6jNmig1y/TA+kYO4g3RSRF0IAv0no=
-github.com/digitalbitbox/bitbox02-api-go v0.0.0-20221003094719-2c29561c5a4c h1:mJl1SA+NVUZGd+LwgRpmLpNyv+kuAhKnEzE+kvIrK+0=
-github.com/digitalbitbox/bitbox02-api-go v0.0.0-20221003094719-2c29561c5a4c/go.mod h1:4HNNrzUZC3ew0iuD40MoGp6wAhcDw1UtGYBRjJkJF/k=
+github.com/digitalbitbox/bitbox02-api-go v0.0.0-20221027102202-8c31f236c498 h1:rmgofU3d2ZKU4mYzAfve9g3rmjJ7SVwg1uh+AgwqDt8=
+github.com/digitalbitbox/bitbox02-api-go v0.0.0-20221027102202-8c31f236c498/go.mod h1:4HNNrzUZC3ew0iuD40MoGp6wAhcDw1UtGYBRjJkJF/k=
 github.com/dlclark/regexp2 v1.4.1-0.20201116162257-a2a8dda75c91/go.mod h1:2pZnwuY/m+8K6iRw6wQdMtk+rH5tNGR1i55kozfMjCc=
 github.com/dnaeon/go-vcr v1.1.0/go.mod h1:M7tiix8f0r6mKKJ3Yq/kqU1OYf3MnfmBWVbPx/yU9ko=
 github.com/dnaeon/go-vcr v1.2.0/go.mod h1:R4UdLID7HZT3taECzJs4YgbbH6PIGXB6W/sc5OLb6RQ=
diff --git a/vendor/github.com/digitalbitbox/bitbox02-api-go/api/firmware/btc.go b/vendor/github.com/digitalbitbox/bitbox02-api-go/api/firmware/btc.go
index a310266de3..573af8650d 100644
--- a/vendor/github.com/digitalbitbox/bitbox02-api-go/api/firmware/btc.go
+++ b/vendor/github.com/digitalbitbox/bitbox02-api-go/api/firmware/btc.go
@@ -246,6 +246,7 @@ func (device *Device) BTCSign(
 	coin messages.BTCCoin,
 	scriptConfigs []*messages.BTCScriptConfigWithKeypath,
 	tx *BTCTx,
+	formatUnit messages.BTCSignInitRequest_FormatUnit,
 ) ([][]byte, error) {
 	if !device.version.AtLeast(semver.NewSemVer(9, 10, 0)) {
 		for _, sc := range scriptConfigs {
@@ -267,6 +268,7 @@ func (device *Device) BTCSign(
 				NumInputs:     uint32(len(tx.Inputs)),
 				NumOutputs:    uint32(len(tx.Outputs)),
 				Locktime:      tx.Locktime,
+				FormatUnit:    formatUnit,
 			}}})
 	if err != nil {
 		return nil, err
diff --git a/vendor/github.com/digitalbitbox/bitbox02-api-go/api/firmware/messages/btc.pb.go b/vendor/github.com/digitalbitbox/bitbox02-api-go/api/firmware/messages/btc.pb.go
index 144121628d..56684e5f6c 100644
--- a/vendor/github.com/digitalbitbox/bitbox02-api-go/api/firmware/messages/btc.pb.go
+++ b/vendor/github.com/digitalbitbox/bitbox02-api-go/api/firmware/messages/btc.pb.go
@@ -311,6 +311,54 @@ func (BTCPubRequest_XPubType) EnumDescriptor() ([]byte, []int) {
 	return file_btc_proto_rawDescGZIP(), []int{1, 0}
 }
 
+type BTCSignInitRequest_FormatUnit int32
+
+const (
+	// According to `coin` (BTC, LTC, etc.).
+	BTCSignInitRequest_DEFAULT BTCSignInitRequest_FormatUnit = 0
+	// Only valid for BTC/TBTC, formats as "sat"/"tsat".
+	BTCSignInitRequest_SAT BTCSignInitRequest_FormatUnit = 1
+)
+
+// Enum value maps for BTCSignInitRequest_FormatUnit.
+var (
+	BTCSignInitRequest_FormatUnit_name = map[int32]string{
+		0: "DEFAULT",
+		1: "SAT",
+	}
+	BTCSignInitRequest_FormatUnit_value = map[string]int32{
+		"DEFAULT": 0,
+		"SAT":     1,
+	}
+)
+
+func (x BTCSignInitRequest_FormatUnit) Enum() *BTCSignInitRequest_FormatUnit {
+	p := new(BTCSignInitRequest_FormatUnit)
+	*p = x
+	return p
+}
+
+func (x BTCSignInitRequest_FormatUnit) String() string {
+	return protoimpl.X.EnumStringOf(x.Descriptor(), protoreflect.EnumNumber(x))
+}
+
+func (BTCSignInitRequest_FormatUnit) Descriptor() protoreflect.EnumDescriptor {
+	return file_btc_proto_enumTypes[5].Descriptor()
+}
+
+func (BTCSignInitRequest_FormatUnit) Type() protoreflect.EnumType {
+	return &file_btc_proto_enumTypes[5]
+}
+
+func (x BTCSignInitRequest_FormatUnit) Number() protoreflect.EnumNumber {
+	return protoreflect.EnumNumber(x)
+}
+
+// Deprecated: Use BTCSignInitRequest_FormatUnit.Descriptor instead.
+func (BTCSignInitRequest_FormatUnit) EnumDescriptor() ([]byte, []int) {
+	return file_btc_proto_rawDescGZIP(), []int{3, 0}
+}
+
 type BTCSignNextResponse_Type int32
 
 const (
@@ -357,11 +405,11 @@ func (x BTCSignNextResponse_Type) String() string {
 }
 
 func (BTCSignNextResponse_Type) Descriptor() protoreflect.EnumDescriptor {
-	return file_btc_proto_enumTypes[5].Descriptor()
+	return file_btc_proto_enumTypes[6].Descriptor()
 }
 
 func (BTCSignNextResponse_Type) Type() protoreflect.EnumType {
-	return &file_btc_proto_enumTypes[5]
+	return &file_btc_proto_enumTypes[6]
 }
 
 func (x BTCSignNextResponse_Type) Number() protoreflect.EnumNumber {
@@ -405,11 +453,11 @@ func (x BTCRegisterScriptConfigRequest_XPubType) String() string {
 }
 
 func (BTCRegisterScriptConfigRequest_XPubType) Descriptor() protoreflect.EnumDescriptor {
-	return file_btc_proto_enumTypes[6].Descriptor()
+	return file_btc_proto_enumTypes[7].Descriptor()
 }
 
 func (BTCRegisterScriptConfigRequest_XPubType) Type() protoreflect.EnumType {
-	return &file_btc_proto_enumTypes[6]
+	return &file_btc_proto_enumTypes[7]
 }
 
 func (x BTCRegisterScriptConfigRequest_XPubType) Number() protoreflect.EnumNumber {
@@ -672,6 +720,7 @@ type BTCSignInitRequest struct {
 	NumInputs     uint32                        `protobuf:"varint,5,opt,name=num_inputs,json=numInputs,proto3" json:"num_inputs,omitempty"`
 	NumOutputs    uint32                        `protobuf:"varint,6,opt,name=num_outputs,json=numOutputs,proto3" json:"num_outputs,omitempty"`
 	Locktime      uint32                        `protobuf:"varint,7,opt,name=locktime,proto3" json:"locktime,omitempty"` // must be <500000000
+	FormatUnit    BTCSignInitRequest_FormatUnit `protobuf:"varint,8,opt,name=format_unit,json=formatUnit,proto3,enum=shiftcrypto.bitbox02.BTCSignInitRequest_FormatUnit" json:"format_unit,omitempty"`
 }
 
 func (x *BTCSignInitRequest) Reset() {
@@ -748,6 +797,13 @@ func (x *BTCSignInitRequest) GetLocktime() uint32 {
 	return 0
 }
 
+func (x *BTCSignInitRequest) GetFormatUnit() BTCSignInitRequest_FormatUnit {
+	if x != nil {
+		return x.FormatUnit
+	}
+	return BTCSignInitRequest_DEFAULT
+}
+
 type BTCSignNextResponse struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -2019,7 +2075,7 @@ var file_btc_proto_rawDesc = []byte{
 	0x63, 0x72, 0x69, 0x70, 0x74, 0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x52, 0x0c, 0x73, 0x63, 0x72,
 	0x69, 0x70, 0x74, 0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x12, 0x18, 0x0a, 0x07, 0x6b, 0x65, 0x79,
 	0x70, 0x61, 0x74, 0x68, 0x18, 0x03, 0x20, 0x03, 0x28, 0x0d, 0x52, 0x07, 0x6b, 0x65, 0x79, 0x70,
-	0x61, 0x74, 0x68, 0x22, 0x96, 0x02, 0x0a, 0x12, 0x42, 0x54, 0x43, 0x53, 0x69, 0x67, 0x6e, 0x49,
+	0x61, 0x74, 0x68, 0x22, 0x90, 0x03, 0x0a, 0x12, 0x42, 0x54, 0x43, 0x53, 0x69, 0x67, 0x6e, 0x49,
 	0x6e, 0x69, 0x74, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x12, 0x31, 0x0a, 0x04, 0x63, 0x6f,
 	0x69, 0x6e, 0x18, 0x01, 0x20, 0x01, 0x28, 0x0e, 0x32, 0x1d, 0x2e, 0x73, 0x68, 0x69, 0x66, 0x74,
 	0x63, 0x72, 0x79, 0x70, 0x74, 0x6f, 0x2e, 0x62, 0x69, 0x74, 0x62, 0x6f, 0x78, 0x30, 0x32, 0x2e,
@@ -2036,241 +2092,249 @@ var file_btc_proto_rawDesc = []byte{
 	0x1f, 0x0a, 0x0b, 0x6e, 0x75, 0x6d, 0x5f, 0x6f, 0x75, 0x74, 0x70, 0x75, 0x74, 0x73, 0x18, 0x06,
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 }
 
 var (
@@ -2285,7 +2349,7 @@ func file_btc_proto_rawDescGZIP() []byte {
 	return file_btc_proto_rawDescData
 }
 
-var file_btc_proto_enumTypes = make([]protoimpl.EnumInfo, 7)
+var file_btc_proto_enumTypes = make([]protoimpl.EnumInfo, 8)
 var file_btc_proto_msgTypes = make([]protoimpl.MessageInfo, 20)
 var file_btc_proto_goTypes = []interface{}{
 	(BTCCoin)(0),                                 // 0: shiftcrypto.bitbox02.BTCCoin
@@ -2293,73 +2357,75 @@ var file_btc_proto_goTypes = []interface{}{
 	(BTCScriptConfig_SimpleType)(0),              // 2: shiftcrypto.bitbox02.BTCScriptConfig.SimpleType
 	(BTCScriptConfig_Multisig_ScriptType)(0),     // 3: shiftcrypto.bitbox02.BTCScriptConfig.Multisig.ScriptType
 	(BTCPubRequest_XPubType)(0),                  // 4: shiftcrypto.bitbox02.BTCPubRequest.XPubType
-	(BTCSignNextResponse_Type)(0),                // 5: shiftcrypto.bitbox02.BTCSignNextResponse.Type
-	(BTCRegisterScriptConfigRequest_XPubType)(0), // 6: shiftcrypto.bitbox02.BTCRegisterScriptConfigRequest.XPubType
-	(*BTCScriptConfig)(nil),                      // 7: shiftcrypto.bitbox02.BTCScriptConfig
-	(*BTCPubRequest)(nil),                        // 8: shiftcrypto.bitbox02.BTCPubRequest
-	(*BTCScriptConfigWithKeypath)(nil),           // 9: shiftcrypto.bitbox02.BTCScriptConfigWithKeypath
-	(*BTCSignInitRequest)(nil),                   // 10: shiftcrypto.bitbox02.BTCSignInitRequest
-	(*BTCSignNextResponse)(nil),                  // 11: shiftcrypto.bitbox02.BTCSignNextResponse
-	(*BTCSignInputRequest)(nil),                  // 12: shiftcrypto.bitbox02.BTCSignInputRequest
-	(*BTCSignOutputRequest)(nil),                 // 13: shiftcrypto.bitbox02.BTCSignOutputRequest
-	(*BTCScriptConfigRegistration)(nil),          // 14: shiftcrypto.bitbox02.BTCScriptConfigRegistration
-	(*BTCSuccess)(nil),                           // 15: shiftcrypto.bitbox02.BTCSuccess
-	(*BTCIsScriptConfigRegisteredRequest)(nil),   // 16: shiftcrypto.bitbox02.BTCIsScriptConfigRegisteredRequest
-	(*BTCIsScriptConfigRegisteredResponse)(nil),  // 17: shiftcrypto.bitbox02.BTCIsScriptConfigRegisteredResponse
-	(*BTCRegisterScriptConfigRequest)(nil),       // 18: shiftcrypto.bitbox02.BTCRegisterScriptConfigRequest
-	(*BTCPrevTxInitRequest)(nil),                 // 19: shiftcrypto.bitbox02.BTCPrevTxInitRequest
-	(*BTCPrevTxInputRequest)(nil),                // 20: shiftcrypto.bitbox02.BTCPrevTxInputRequest
-	(*BTCPrevTxOutputRequest)(nil),               // 21: shiftcrypto.bitbox02.BTCPrevTxOutputRequest
-	(*BTCSignMessageRequest)(nil),                // 22: shiftcrypto.bitbox02.BTCSignMessageRequest
-	(*BTCSignMessageResponse)(nil),               // 23: shiftcrypto.bitbox02.BTCSignMessageResponse
-	(*BTCRequest)(nil),                           // 24: shiftcrypto.bitbox02.BTCRequest
-	(*BTCResponse)(nil),                          // 25: shiftcrypto.bitbox02.BTCResponse
-	(*BTCScriptConfig_Multisig)(nil),             // 26: shiftcrypto.bitbox02.BTCScriptConfig.Multisig
-	(*AntiKleptoSignerCommitment)(nil),           // 27: shiftcrypto.bitbox02.AntiKleptoSignerCommitment
-	(*AntiKleptoHostNonceCommitment)(nil),        // 28: shiftcrypto.bitbox02.AntiKleptoHostNonceCommitment
-	(*AntiKleptoSignatureRequest)(nil),           // 29: shiftcrypto.bitbox02.AntiKleptoSignatureRequest
-	(*XPub)(nil),                                 // 30: shiftcrypto.bitbox02.XPub
+	(BTCSignInitRequest_FormatUnit)(0),           // 5: shiftcrypto.bitbox02.BTCSignInitRequest.FormatUnit
+	(BTCSignNextResponse_Type)(0),                // 6: shiftcrypto.bitbox02.BTCSignNextResponse.Type
+	(BTCRegisterScriptConfigRequest_XPubType)(0), // 7: shiftcrypto.bitbox02.BTCRegisterScriptConfigRequest.XPubType
+	(*BTCScriptConfig)(nil),                      // 8: shiftcrypto.bitbox02.BTCScriptConfig
+	(*BTCPubRequest)(nil),                        // 9: shiftcrypto.bitbox02.BTCPubRequest
+	(*BTCScriptConfigWithKeypath)(nil),           // 10: shiftcrypto.bitbox02.BTCScriptConfigWithKeypath
+	(*BTCSignInitRequest)(nil),                   // 11: shiftcrypto.bitbox02.BTCSignInitRequest
+	(*BTCSignNextResponse)(nil),                  // 12: shiftcrypto.bitbox02.BTCSignNextResponse
+	(*BTCSignInputRequest)(nil),                  // 13: shiftcrypto.bitbox02.BTCSignInputRequest
+	(*BTCSignOutputRequest)(nil),                 // 14: shiftcrypto.bitbox02.BTCSignOutputRequest
+	(*BTCScriptConfigRegistration)(nil),          // 15: shiftcrypto.bitbox02.BTCScriptConfigRegistration
+	(*BTCSuccess)(nil),                           // 16: shiftcrypto.bitbox02.BTCSuccess
+	(*BTCIsScriptConfigRegisteredRequest)(nil),   // 17: shiftcrypto.bitbox02.BTCIsScriptConfigRegisteredRequest
+	(*BTCIsScriptConfigRegisteredResponse)(nil),  // 18: shiftcrypto.bitbox02.BTCIsScriptConfigRegisteredResponse
+	(*BTCRegisterScriptConfigRequest)(nil),       // 19: shiftcrypto.bitbox02.BTCRegisterScriptConfigRequest
+	(*BTCPrevTxInitRequest)(nil),                 // 20: shiftcrypto.bitbox02.BTCPrevTxInitRequest
+	(*BTCPrevTxInputRequest)(nil),                // 21: shiftcrypto.bitbox02.BTCPrevTxInputRequest
+	(*BTCPrevTxOutputRequest)(nil),               // 22: shiftcrypto.bitbox02.BTCPrevTxOutputRequest
+	(*BTCSignMessageRequest)(nil),                // 23: shiftcrypto.bitbox02.BTCSignMessageRequest
+	(*BTCSignMessageResponse)(nil),               // 24: shiftcrypto.bitbox02.BTCSignMessageResponse
+	(*BTCRequest)(nil),                           // 25: shiftcrypto.bitbox02.BTCRequest
+	(*BTCResponse)(nil),                          // 26: shiftcrypto.bitbox02.BTCResponse
+	(*BTCScriptConfig_Multisig)(nil),             // 27: shiftcrypto.bitbox02.BTCScriptConfig.Multisig
+	(*AntiKleptoSignerCommitment)(nil),           // 28: shiftcrypto.bitbox02.AntiKleptoSignerCommitment
+	(*AntiKleptoHostNonceCommitment)(nil),        // 29: shiftcrypto.bitbox02.AntiKleptoHostNonceCommitment
+	(*AntiKleptoSignatureRequest)(nil),           // 30: shiftcrypto.bitbox02.AntiKleptoSignatureRequest
+	(*XPub)(nil),                                 // 31: shiftcrypto.bitbox02.XPub
 }
 var file_btc_proto_depIdxs = []int32{
 	2,  // 0: shiftcrypto.bitbox02.BTCScriptConfig.simple_type:type_name -> shiftcrypto.bitbox02.BTCScriptConfig.SimpleType
-	26, // 1: shiftcrypto.bitbox02.BTCScriptConfig.multisig:type_name -> shiftcrypto.bitbox02.BTCScriptConfig.Multisig
+	27, // 1: shiftcrypto.bitbox02.BTCScriptConfig.multisig:type_name -> shiftcrypto.bitbox02.BTCScriptConfig.Multisig
 	0,  // 2: shiftcrypto.bitbox02.BTCPubRequest.coin:type_name -> shiftcrypto.bitbox02.BTCCoin
 	4,  // 3: shiftcrypto.bitbox02.BTCPubRequest.xpub_type:type_name -> shiftcrypto.bitbox02.BTCPubRequest.XPubType
-	7,  // 4: shiftcrypto.bitbox02.BTCPubRequest.script_config:type_name -> shiftcrypto.bitbox02.BTCScriptConfig
-	7,  // 5: shiftcrypto.bitbox02.BTCScriptConfigWithKeypath.script_config:type_name -> shiftcrypto.bitbox02.BTCScriptConfig
+	8,  // 4: shiftcrypto.bitbox02.BTCPubRequest.script_config:type_name -> shiftcrypto.bitbox02.BTCScriptConfig
+	8,  // 5: shiftcrypto.bitbox02.BTCScriptConfigWithKeypath.script_config:type_name -> shiftcrypto.bitbox02.BTCScriptConfig
 	0,  // 6: shiftcrypto.bitbox02.BTCSignInitRequest.coin:type_name -> shiftcrypto.bitbox02.BTCCoin
-	9,  // 7: shiftcrypto.bitbox02.BTCSignInitRequest.script_configs:type_name -> shiftcrypto.bitbox02.BTCScriptConfigWithKeypath
-	5,  // 8: shiftcrypto.bitbox02.BTCSignNextResponse.type:type_name -> shiftcrypto.bitbox02.BTCSignNextResponse.Type
-	27, // 9: shiftcrypto.bitbox02.BTCSignNextResponse.anti_klepto_signer_commitment:type_name -> shiftcrypto.bitbox02.AntiKleptoSignerCommitment
-	28, // 10: shiftcrypto.bitbox02.BTCSignInputRequest.host_nonce_commitment:type_name -> shiftcrypto.bitbox02.AntiKleptoHostNonceCommitment
-	1,  // 11: shiftcrypto.bitbox02.BTCSignOutputRequest.type:type_name -> shiftcrypto.bitbox02.BTCOutputType
-	0,  // 12: shiftcrypto.bitbox02.BTCScriptConfigRegistration.coin:type_name -> shiftcrypto.bitbox02.BTCCoin
-	7,  // 13: shiftcrypto.bitbox02.BTCScriptConfigRegistration.script_config:type_name -> shiftcrypto.bitbox02.BTCScriptConfig
-	14, // 14: shiftcrypto.bitbox02.BTCIsScriptConfigRegisteredRequest.registration:type_name -> shiftcrypto.bitbox02.BTCScriptConfigRegistration
-	14, // 15: shiftcrypto.bitbox02.BTCRegisterScriptConfigRequest.registration:type_name -> shiftcrypto.bitbox02.BTCScriptConfigRegistration
-	6,  // 16: shiftcrypto.bitbox02.BTCRegisterScriptConfigRequest.xpub_type:type_name -> shiftcrypto.bitbox02.BTCRegisterScriptConfigRequest.XPubType
-	0,  // 17: shiftcrypto.bitbox02.BTCSignMessageRequest.coin:type_name -> shiftcrypto.bitbox02.BTCCoin
-	9,  // 18: shiftcrypto.bitbox02.BTCSignMessageRequest.script_config:type_name -> shiftcrypto.bitbox02.BTCScriptConfigWithKeypath
-	28, // 19: shiftcrypto.bitbox02.BTCSignMessageRequest.host_nonce_commitment:type_name -> shiftcrypto.bitbox02.AntiKleptoHostNonceCommitment
-	16, // 20: shiftcrypto.bitbox02.BTCRequest.is_script_config_registered:type_name -> shiftcrypto.bitbox02.BTCIsScriptConfigRegisteredRequest
-	18, // 21: shiftcrypto.bitbox02.BTCRequest.register_script_config:type_name -> shiftcrypto.bitbox02.BTCRegisterScriptConfigRequest
-	19, // 22: shiftcrypto.bitbox02.BTCRequest.prevtx_init:type_name -> shiftcrypto.bitbox02.BTCPrevTxInitRequest
-	20, // 23: shiftcrypto.bitbox02.BTCRequest.prevtx_input:type_name -> shiftcrypto.bitbox02.BTCPrevTxInputRequest
-	21, // 24: shiftcrypto.bitbox02.BTCRequest.prevtx_output:type_name -> shiftcrypto.bitbox02.BTCPrevTxOutputRequest
-	22, // 25: shiftcrypto.bitbox02.BTCRequest.sign_message:type_name -> shiftcrypto.bitbox02.BTCSignMessageRequest
-	29, // 26: shiftcrypto.bitbox02.BTCRequest.antiklepto_signature:type_name -> shiftcrypto.bitbox02.AntiKleptoSignatureRequest
-	15, // 27: shiftcrypto.bitbox02.BTCResponse.success:type_name -> shiftcrypto.bitbox02.BTCSuccess
-	17, // 28: shiftcrypto.bitbox02.BTCResponse.is_script_config_registered:type_name -> shiftcrypto.bitbox02.BTCIsScriptConfigRegisteredResponse
-	11, // 29: shiftcrypto.bitbox02.BTCResponse.sign_next:type_name -> shiftcrypto.bitbox02.BTCSignNextResponse
-	23, // 30: shiftcrypto.bitbox02.BTCResponse.sign_message:type_name -> shiftcrypto.bitbox02.BTCSignMessageResponse
-	27, // 31: shiftcrypto.bitbox02.BTCResponse.antiklepto_signer_commitment:type_name -> shiftcrypto.bitbox02.AntiKleptoSignerCommitment
-	30, // 32: shiftcrypto.bitbox02.BTCScriptConfig.Multisig.xpubs:type_name -> shiftcrypto.bitbox02.XPub
-	3,  // 33: shiftcrypto.bitbox02.BTCScriptConfig.Multisig.script_type:type_name -> shiftcrypto.bitbox02.BTCScriptConfig.Multisig.ScriptType
-	34, // [34:34] is the sub-list for method output_type
-	34, // [34:34] is the sub-list for method input_type
-	34, // [34:34] is the sub-list for extension type_name
-	34, // [34:34] is the sub-list for extension extendee
-	0,  // [0:34] is the sub-list for field type_name
+	10, // 7: shiftcrypto.bitbox02.BTCSignInitRequest.script_configs:type_name -> shiftcrypto.bitbox02.BTCScriptConfigWithKeypath
+	5,  // 8: shiftcrypto.bitbox02.BTCSignInitRequest.format_unit:type_name -> shiftcrypto.bitbox02.BTCSignInitRequest.FormatUnit
+	6,  // 9: shiftcrypto.bitbox02.BTCSignNextResponse.type:type_name -> shiftcrypto.bitbox02.BTCSignNextResponse.Type
+	28, // 10: shiftcrypto.bitbox02.BTCSignNextResponse.anti_klepto_signer_commitment:type_name -> shiftcrypto.bitbox02.AntiKleptoSignerCommitment
+	29, // 11: shiftcrypto.bitbox02.BTCSignInputRequest.host_nonce_commitment:type_name -> shiftcrypto.bitbox02.AntiKleptoHostNonceCommitment
+	1,  // 12: shiftcrypto.bitbox02.BTCSignOutputRequest.type:type_name -> shiftcrypto.bitbox02.BTCOutputType
+	0,  // 13: shiftcrypto.bitbox02.BTCScriptConfigRegistration.coin:type_name -> shiftcrypto.bitbox02.BTCCoin
+	8,  // 14: shiftcrypto.bitbox02.BTCScriptConfigRegistration.script_config:type_name -> shiftcrypto.bitbox02.BTCScriptConfig
+	15, // 15: shiftcrypto.bitbox02.BTCIsScriptConfigRegisteredRequest.registration:type_name -> shiftcrypto.bitbox02.BTCScriptConfigRegistration
+	15, // 16: shiftcrypto.bitbox02.BTCRegisterScriptConfigRequest.registration:type_name -> shiftcrypto.bitbox02.BTCScriptConfigRegistration
+	7,  // 17: shiftcrypto.bitbox02.BTCRegisterScriptConfigRequest.xpub_type:type_name -> shiftcrypto.bitbox02.BTCRegisterScriptConfigRequest.XPubType
+	0,  // 18: shiftcrypto.bitbox02.BTCSignMessageRequest.coin:type_name -> shiftcrypto.bitbox02.BTCCoin
+	10, // 19: shiftcrypto.bitbox02.BTCSignMessageRequest.script_config:type_name -> shiftcrypto.bitbox02.BTCScriptConfigWithKeypath
+	29, // 20: shiftcrypto.bitbox02.BTCSignMessageRequest.host_nonce_commitment:type_name -> shiftcrypto.bitbox02.AntiKleptoHostNonceCommitment
+	17, // 21: shiftcrypto.bitbox02.BTCRequest.is_script_config_registered:type_name -> shiftcrypto.bitbox02.BTCIsScriptConfigRegisteredRequest
+	19, // 22: shiftcrypto.bitbox02.BTCRequest.register_script_config:type_name -> shiftcrypto.bitbox02.BTCRegisterScriptConfigRequest
+	20, // 23: shiftcrypto.bitbox02.BTCRequest.prevtx_init:type_name -> shiftcrypto.bitbox02.BTCPrevTxInitRequest
+	21, // 24: shiftcrypto.bitbox02.BTCRequest.prevtx_input:type_name -> shiftcrypto.bitbox02.BTCPrevTxInputRequest
+	22, // 25: shiftcrypto.bitbox02.BTCRequest.prevtx_output:type_name -> shiftcrypto.bitbox02.BTCPrevTxOutputRequest
+	23, // 26: shiftcrypto.bitbox02.BTCRequest.sign_message:type_name -> shiftcrypto.bitbox02.BTCSignMessageRequest
+	30, // 27: shiftcrypto.bitbox02.BTCRequest.antiklepto_signature:type_name -> shiftcrypto.bitbox02.AntiKleptoSignatureRequest
+	16, // 28: shiftcrypto.bitbox02.BTCResponse.success:type_name -> shiftcrypto.bitbox02.BTCSuccess
+	18, // 29: shiftcrypto.bitbox02.BTCResponse.is_script_config_registered:type_name -> shiftcrypto.bitbox02.BTCIsScriptConfigRegisteredResponse
+	12, // 30: shiftcrypto.bitbox02.BTCResponse.sign_next:type_name -> shiftcrypto.bitbox02.BTCSignNextResponse
+	24, // 31: shiftcrypto.bitbox02.BTCResponse.sign_message:type_name -> shiftcrypto.bitbox02.BTCSignMessageResponse
+	28, // 32: shiftcrypto.bitbox02.BTCResponse.antiklepto_signer_commitment:type_name -> shiftcrypto.bitbox02.AntiKleptoSignerCommitment
+	31, // 33: shiftcrypto.bitbox02.BTCScriptConfig.Multisig.xpubs:type_name -> shiftcrypto.bitbox02.XPub
+	3,  // 34: shiftcrypto.bitbox02.BTCScriptConfig.Multisig.script_type:type_name -> shiftcrypto.bitbox02.BTCScriptConfig.Multisig.ScriptType
+	35, // [35:35] is the sub-list for method output_type
+	35, // [35:35] is the sub-list for method input_type
+	35, // [35:35] is the sub-list for extension type_name
+	35, // [35:35] is the sub-list for extension extendee
+	0,  // [0:35] is the sub-list for field type_name
 }
 
 func init() { file_btc_proto_init() }
@@ -2640,7 +2706,7 @@ func file_btc_proto_init() {
 		File: protoimpl.DescBuilder{
 			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
 			RawDescriptor: file_btc_proto_rawDesc,
-			NumEnums:      7,
+			NumEnums:      8,
 			NumMessages:   20,
 			NumExtensions: 0,
 			NumServices:   0,
diff --git a/vendor/github.com/digitalbitbox/bitbox02-api-go/api/firmware/messages/btc.proto b/vendor/github.com/digitalbitbox/bitbox02-api-go/api/firmware/messages/btc.proto
index 60e0df6817..e3370ebab6 100644
--- a/vendor/github.com/digitalbitbox/bitbox02-api-go/api/firmware/messages/btc.proto
+++ b/vendor/github.com/digitalbitbox/bitbox02-api-go/api/firmware/messages/btc.proto
@@ -96,6 +96,14 @@ message BTCSignInitRequest {
   uint32 num_inputs = 5;
   uint32 num_outputs = 6;
   uint32 locktime = 7; // must be <500000000
+
+  enum FormatUnit {
+    // According to `coin` (BTC, LTC, etc.).
+    DEFAULT = 0;
+    // Only valid for BTC/TBTC, formats as "sat"/"tsat".
+    SAT = 1;
+  }
+  FormatUnit format_unit = 8;
 }
 
 message BTCSignNextResponse {
diff --git a/vendor/github.com/digitalbitbox/bitbox02-api-go/communication/u2fhid/u2fhid.go b/vendor/github.com/digitalbitbox/bitbox02-api-go/communication/u2fhid/u2fhid.go
index f4a4cd4d14..e34362e5f2 100644
--- a/vendor/github.com/digitalbitbox/bitbox02-api-go/communication/u2fhid/u2fhid.go
+++ b/vendor/github.com/digitalbitbox/bitbox02-api-go/communication/u2fhid/u2fhid.go
@@ -31,7 +31,7 @@ const (
 
 const (
 	// CID - channel identifier.
-	cid = 0xff000000
+	cid uint32 = 0xff000000
 )
 
 func newBuffer() *bytes.Buffer {
@@ -109,7 +109,7 @@ func (communication *Communication) sendFrame(msg string) error {
 	readBuffer := bytes.NewBuffer([]byte(msg))
 	// init frame
 	header := newBuffer()
-	if err := binary.Write(header, binary.BigEndian, uint32(cid)); err != nil {
+	if err := binary.Write(header, binary.BigEndian, cid); err != nil {
 		return errp.WithStack(err)
 	}
 	if err := binary.Write(header, binary.BigEndian, communication.cmd); err != nil {
@@ -124,7 +124,7 @@ func (communication *Communication) sendFrame(msg string) error {
 	for seq := 0; readBuffer.Len() > 0; seq++ {
 		// cont frame
 		header = newBuffer()
-		if err := binary.Write(header, binary.BigEndian, uint32(cid)); err != nil {
+		if err := binary.Write(header, binary.BigEndian, cid); err != nil {
 			return errp.WithStack(err)
 		}
 		if err := binary.Write(header, binary.BigEndian, uint8(seq)); err != nil {
@@ -153,8 +153,9 @@ func (communication *Communication) readFrame() ([]byte, error) {
 	if readLen < 7 {
 		return nil, errp.New("expected minimum read length of 7")
 	}
-	if read[0] != 0xff || read[1] != 0 || read[2] != 0 || read[3] != 0 {
-		return nil, errp.Newf("USB command ID mismatch %d %d %d %d", read[0], read[1], read[2], read[3])
+	replyCid := binary.BigEndian.Uint32(read[:4])
+	if replyCid != cid {
+		return nil, errp.Newf("USB command ID mismatch, %v != %v", cid, replyCid)
 	}
 	if read[4] != communication.cmd {
 		return nil, errp.Newf("USB command frame mismatch (%d, expected %d)", read[4], communication.cmd)
diff --git a/vendor/modules.txt b/vendor/modules.txt
index 5c27dad334..4a47141edb 100644
--- a/vendor/modules.txt
+++ b/vendor/modules.txt
@@ -44,7 +44,7 @@ github.com/decred/dcrd/crypto/blake256
 github.com/decred/dcrd/dcrec/secp256k1/v4
 github.com/decred/dcrd/dcrec/secp256k1/v4/ecdsa
 github.com/decred/dcrd/dcrec/secp256k1/v4/schnorr
-# github.com/digitalbitbox/bitbox02-api-go v0.0.0-20221003094719-2c29561c5a4c
+# github.com/digitalbitbox/bitbox02-api-go v0.0.0-20221027102202-8c31f236c498
 ## explicit
 github.com/digitalbitbox/bitbox02-api-go/api/bootloader
 github.com/digitalbitbox/bitbox02-api-go/api/common