I created an account on this forum just to thanks everyone involved in this firmware upgrade method. I just successfully upgraded my XL2720Z to V5!
After massive DisplayPort issues (blacks flickering, signal loss and ludicrous resolution/framerate), I first tried a certified DP cable but it didn't help. More googling later, I ended up on this board and understood that my monitor was on V3, and needed at least V4 to fix those DP issues.
I followed the tutorial as stated earlier on this topic, but I'm gonna log some steps that were completely different for me, for others people who will do it after me:
- Updated with a CLEVO P150EM + GTX 675M, no VGA port available but DVI did the trick
- The monitor wasn't on bus 1 but on bus 4. e.i. I could only see the monitor model with "sudo i2cdump -r 0-127 4 0x50" instead of "sudo i2cdump -r 0-127 1 0x50". This means that every single command (dump, flash, etc) to the monitor had to be rewritten with 4 instead of 1. I thought I'd mention that since it wasn't well documented as far as I found on the topic.
- My flash ship was "W25Q16.Q", not "MX25L1605A/MX25L1606E". So same with the bus, I had to make sure the correct name was written.
The first flash attempt failed at verification.
- Code: Select all
Verifying flash... FAILED at 0x00000000! Expected=0x02, Found=0xb0, failed byte count from 0x00000000-0x001fffff: 0xfe
This first attempt was using a DVI to VGA adapter and a VGA cable. The monitor power led was RED, screen was black but still detected in ubuntu settings as well as in the terminal on bus 4. After reading (and sweating a bit as well
), I redid the flash but only with a DVI cable (so no VGA whatsoever), and 20 minutes later, it works! \o/
No DP issues, I can turn on/off my monitor as I'm typing those lines. It just works!
So yeah, thanks again!