Flashing a Rom is a way of installing a kind of 'Remix' of the OS. The OS Version & Kernel is normally the same but Support files are removed or updated, drivers changed, configurations altered and a new selection of starting apps is installed. Because this update is done before the regular OS permissions are enforced 'Root' access speed controls and swapfiles can be setup.
The resulting remix Should be a improvement in Performance, abilities and in some cases extended battery life.
The exact changes vary with each Rom. Normally the first message in a forum thread announcing a Rom has a list of what is changed.
Part of the process removes all of your installed apps and only the ones included in the ROM are re-installed.
This will get detailed and seem a little long but it is pretty simple.
You can do this without a PC but you should know how to do these steps on a PC but may not on your slate.
Note original SDK version 1.7.4 in this example.
Note New SDK Version.
Note we are at the new sdk version now.
1. Unpack the contents (use 7-zip on windows) of the upgrade package to a new folder 2. Go to that folder, and look inside, you will see two folders, ROM and SDCARD 3a. Go to the ROM folder, and double click the FWDN.EXE (FWDN_V7_v2.09.exe in this case) (FWDN opens, and everything should be empty. If not, click on the items in the list, and press DEL to remove them.) 3b. Go to the folder VTCDRV and double click the installer, to install drivers for your tablet in FWDN mode. 4. Click on Project, and select 'My Project'. Now all the stuff in the list should be filled in.
5. Connect power supply to your tablet. (Usb cable stays out, until later!) 6. Press & hold your finger on the center of the touchscreen, and then press & hold the power-on button at the same time. 7. Boot splash screen appears with "i love you" or other picture on it. Keep holding power button+finger on screen! 8. Wait for 5-6 seconds, and let go of the button/screen. 9. If you did this correctly, [b]without USB connected[b], the splash screen will remain on screen now. If not, unplug the power supply, press the reset button to power off the tablet, then repeat steps 4-9 untill the splash screen stays on the screen! Android should not boot up! You are now in normal FWDN mode! 10. Plug in the USB cable, and Windows finds new hardware, install it automatically. 11. FWDN will pop up a small dialog box, device init. 12. You're now ready to flash. Click start & wait till it's done.
Notes: - When going from older roms to #348 (AsuROM uses this as base) the partitions will be off. - This triggers an error during flashing, no worries, just press the reset button on the bottom with a paperclip, and FWDN will re-detect the device & you can click the start button again. - If it keeps refusing to flash, change 'default download' to 'Low format entire memory' - The device can only go into FWDN mode without the USB cable being connected, and with power cable connected. No power cable, is normal boot, even if you press the right button/screen.