diff --git a/ci/build.yml b/ci/build.yml
index 0997f5571..27aaa1ffe 100644
--- a/ci/build.yml
+++ b/ci/build.yml
@@ -32,6 +32,8 @@ build core firmware bitcoinonly:
     - cd core
     - pipenv run make build_firmware
     - mv build/firmware/firmware.bin build/firmware/firmware-bitcoinonly.bin
+    - cd ..
+    - pipenv run ./tools/check-bitcoin-only core/build/firmware/firmware-bitcoinonly.bin
   artifacts:
     name: "$CI_JOB_NAME-$CI_COMMIT_SHORT_SHA"
     paths:
@@ -54,7 +56,7 @@ build core unix frozen:
     paths:
     - core/build/unix/micropython
     - core/src/trezor/res/resources.py
-    expire_in: 1 day
+    expire_in: 1 week
 
 build core unix frozen bitcoinonly:
   stage: build
@@ -69,7 +71,7 @@ build core unix frozen bitcoinonly:
     paths:
     - core/build/unix/micropython-bitcoinonly
     - core/src/trezor/res/resources.py
-    expire_in: 1 day
+    expire_in: 1 week
 
 build core unix frozen debug:
   stage: build
@@ -81,7 +83,7 @@ build core unix frozen debug:
   artifacts:
     name: "$CI_JOB_NAME-$CI_COMMIT_SHORT_SHA"
     untracked: true
-    expire_in: 1 day
+    expire_in: 1 week
 
 
 # Crypto
@@ -98,7 +100,7 @@ build crypto:
     - crypto/tests/libtrezor-crypto.so
     - crypto/tests/test_check
     - crypto/tests/test_openssl
-    expire_in: 1 day
+    expire_in: 1 week
 
 
 # Legacy
@@ -111,6 +113,11 @@ build legacy firmware:
     - pipenv run script/cibuild
     - pipenv run make -C bootloader
     - pipenv run make -C demo
+  artifacts:
+    name: "$CI_JOB_NAME-$CI_COMMIT_SHORT_SHA"
+    paths:
+    - legacy/firmware/trezor.bin
+    expire_in: 1 week
 
 build legacy firmware debug:
   stage: build
@@ -127,6 +134,14 @@ build legacy firmware bitcoinonly:
   script:
     - cd legacy
     - pipenv run script/cibuild
+    - mv firmware/trezor.bin firmware/trezor-bitcoinonly.bin
+    - cd ..
+    - pipenv run ./tools/check-bitcoin-only legacy/firmware/trezor-bitcoinonly.bin
+  artifacts:
+    name: "$CI_JOB_NAME-$CI_COMMIT_SHORT_SHA"
+    paths:
+    - legacy/firmware/trezor-bitcoinonly.bin
+    expire_in: 1 week
 
 build legacy emu:
   stage: build
@@ -140,7 +155,7 @@ build legacy emu:
     name: "$CI_JOB_NAME-$CI_COMMIT_SHORT_SHA"
     paths:
     - legacy/firmware/trezor.elf
-    expire_in: 1 day
+    expire_in: 1 week
 
 build legacy emu bitcoinonly:
   stage: build
@@ -156,4 +171,4 @@ build legacy emu bitcoinonly:
     name: "$CI_JOB_NAME-$CI_COMMIT_SHORT_SHA"
     paths:
     - legacy/firmware/trezor-bitcoinonly.elf
-    expire_in: 1 day
+    expire_in: 1 week
diff --git a/tools/check-bitcoin-only b/tools/check-bitcoin-only
new file mode 100755
index 000000000..f82b5d1c1
--- /dev/null
+++ b/tools/check-bitcoin-only
@@ -0,0 +1,12 @@
+#!/bin/sh
+RETURN=0
+
+# dump all coins except the first 3 (Bitcoin, Testnet, Regtest)
+./common/tools/cointool.py dump -l -p -t | grep '"name"' | cut -d '"' -f 4 | tail -n +4 | while read altcoin; do
+    # echo :"$altcoin":
+    if strings $1 | grep "$altcoin" | grep -v TEXT_MARGIN_LEFT | grep -v _MIN_MNEMONIC_LENGTH_WORD ; then
+        RETURN=1
+    fi
+done
+
+exit $RETURN