So, I bought a player that looks just like this from an eBay auction. On the back, it says it's a DMTECH DM-MP910. I decided to play around with loading different firmware (after saving the current firmware). So now it just has a black screen. I tried to recover it with the RK27Upgrade v2.5 tool. The tool loaded the firmware OK, but I still have the black screen. So, what's the Rock27Boot.bin boot code that comes with that package? Does it need to match the firmware that I took from the drive? Are there other versions of this boot code that I can try?
Update:
OK, I tried something else. I first ran the RK27DM.exe tool that came with the V2.5 upgrade, which also included a TL-T50.RKW file. After doing that, I was able to copy the rkusb.tag and teclast.sys files to the player, and after I unplugged and plugged it back in, I was able to get access to the partition that contains the firmware. I deleted all that and copied in the firmware that I had saved. It still doesn't work, but this time, it locks up on a red screen instead of black. And now the main partition is messed up, and Windows wanted me to reformat it. Is there another RKW file that I can play around with?
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