At the moment there's no solution to solve this problem on the emulator. I use the computer keyboard to enter data, the HP49G always loose some keys. This patch modifies the ROM, so the ROM CRC is wrong. Normally you can ignore this, because during the write access to the flash memory patches are disabled. To check the ROM after download you must disable all patches first.
Patches modify the ROM temporally while running, so the ROM CRC of the patched ROM bank is wrong.