Hi , I do apologies if this is a repeated thread. I am very new with KF. My friend gave his KF which the model says 3HT7G and I guess is the 2nd gen KFHD 8.9". This KF doesn't power on at all.I tryied to hold the power button for 20 sec. and nothing happened. Did it again and connect to the power and nothing happened. I connected to 2 different win 7 pcs one of them didn't recognised at all. The other ine says unknow device. Even unistall driver and use the driver which I found on this website didn't work at all. What I know is that my friend tryied to root it maybe with the wrong version (for 1st gen?). My question is , is there any chance to try to recover it ?
You can replace the motherboard, but if you want any of your data back frist i suggest the other method. Lemme find a link: http://forum.xda-developers.com/show....php?t=2581124
i Don't remember if it has the instructions or not so lemme find the kf2 thread that has the instructions, The instructions are basically the same, only difference is that the pinouts for what to solder where are different and when you finally do get it working you have substitute the bootloader with the correct one for the kindl efire 8.9" rather than the kf2's.