From 592ace6b8f328a5eb9205530a92a5eef3f65ca98 Mon Sep 17 00:00:00 2001 From: Pavol Rusnak Date: Mon, 8 Jul 2019 11:43:11 +0200 Subject: [PATCH] legacy/docs: add additional info required to flash custom firmware --- legacy/README.md | 2 ++ 1 file changed, 2 insertions(+) diff --git a/legacy/README.md b/legacy/README.md index f7e4fb365..072f77637 100644 --- a/legacy/README.md +++ b/legacy/README.md @@ -54,6 +54,8 @@ Step 3 should produce the same sha256 fingerprint like your local build (for the 1. Install python-trezor: `pip install trezor` ([more info](https://github.com/trezor/python-trezor)) 2. `trezorctl firmware_update -f build/trezor-TAG.bin` +*Note: if your device is on the latest bootloader version and you flash custom firmware then you will receive a hard fault warning when booting the firmware image. To avoid this issue, just remove the code in startup.s added by [this commit](https://github.com/trezor/trezor-firmware/commit/222c9ea46c7574cb52d4713c481438a32b85e692#diff-178d0ab7c4debbcf430a0fad8fa06a5c).* + ## Building for development If you want to build device firmware, make sure you have the