:good:Many thanks stifilz! I'll follow your tips step by step. Still need to make some things clear,
"First root using AiO"
should I use this newest version 5.3.7 to root? and should I set the screen timeout to maximum(30min)before rooting
http://forum.xda-developers.com/showthread.php?t=1515720
"Change region using AiO"
I wanna download & install the Chinese version sony reader, should I change to China or Hongkong or Singapore(if there do exist the options)?
Can I change the region repeatedly to install different softwares?
"Install rescue backdoor using AiO"
after rooting and region change, then reopen Aio-- choose tweak&mods -- Install rescue backdoor, is this right?
"Update to ICS R1a, reroot, install back-door"
well, questions here,
how can I update to ICS R1a? still use Aio --- custom rom and flashing --- flash signed zip(auto/ manual) ?
I checked out your thread
http://forum.xda-developers.com/showthread.php?t=1687429
found the only ICS R1a for Tablet P is under UK, then should I change the region to UK before this Update?
"Then you can safely use flasher but make sure you REPLACE the recovery (with flasher)"
http://img254.imageshack.us/img254/1981/flasherv25.png
Just select 1b , right?
but what is the" recovery" and how to replace it?
ps: my tablet p is sim locked to At&t, NOT activated. Will this affect the rooting?