This is the serial output from my TV. Any clues?

NotifyWakeupDeviceForAP(0x4)ÿUART_115200
BIST0-OK
_
Decomp() at 122
Get 1st chunk header at flash 20000
u32Header_BootLoaderSize=0
u32BOOT_LOADER_LENGTH=0
u32ROM_START=20080
u32ROM_END=261EF2
LOAD Frist AP: at 151
DebugFlag=0x0
u32ROM_START=0x20080
u32ROM_END=0x261EF2
u32ROM_Size=241E72
u32RAM_START=0xA0A00180
u32RAM_END=0xA0C41FF2
LOAD_CODE_POINT: at 182
DECOMPRESS_BUF=0xA2000000
CRC at 192
CRC done at 586
Cp AP_1...

Hello,
I found this thread because I tried to repair a TV of a different model (MD31303). I needed to replace the TP.MS3663S.PB818 main board, but the new one had the F&u fl32107 firmware on it, so I soldered off and replaced the eeprom chip. Now the TV starts and shows the correct logo and promts that HDMI source is selected, but then the TV immediately goes back to standby (LED changes from blue to red). Theres no change to change input sources or do anything at all.
Any idea what the problem is?

Hello!
I would like to get some help with my electronics projects and hope for a nice community.