Please for help! After firmware upgrading on my MID tablet WM8505 with: Android Ver: 1.6 Kernel ver: 2.6.29 WMT SDK ver: 1.9 After starting, the buttons don't work correctly. Touchscreen don't work. The battery status not displayed. I can work width external keyboard and mouse. I tried to run upgrading (width WMT2.0 105) from MicroSD again, but it dun work. After starting the tablet show the first row something like this "installation begin - please wait" and after 2-3 sec. system begin starting the allready installed version.
Today I find the version 1.9 which make the mess in my tablet. Here is the Link. The interesting is that the only this version begin instaling on tablet via SD-card. All others versions is not runing. I thing that the problem is in the boot files: scriptcmd, wload.bin, u-boot.bin or some one else. From this page I read the boot procedure in wm8505: Bootloaders WM8505 tablets have a pre-bootloader called W-Load, then a bootloader called u-boot, then the main OS boots. U-boot will read a custom boot script from a file script/scriptcmd on an SD card, if it is present. This is how upgrades and reflashes work. U-boot is also capable of interacting with the user via the built-in 3.3v serial port, if you solder some wires to it.
I solve the problem!!! I get this two files (wload.bin and u-boot.bin) from version 2.0.105 and copy to script directory on 1.9. Then I install ver.1.9 on tablet. Shut down the tablet after installation, and begin new installation of ver.2.0.105. Now the system work like before.
