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Hi all,

I'm newbie in updating android firmware. We have about 41 acer A500, with 3.1 (gingerbread), and want to update all of them to 4 (ICS) official.
I know it just download iconia tab ehnhance from PlayStore + click update.
I just feel update manual of 41 devices is kinda pain with just only 2MB int;l connection.
My POF is save the file in the /cache directory , save to pc, and copy to another tab.
btw i've root all of tab, and familiar with linux command.

1. install terminal > #cp /cache/* /sdcard
arrg whereis the cp command here?

2. install ES File Explorer, copy /cache/* copy to /sdcard
just got a blank folder

3. install cacheDownload2SD
Hoping the cache will appear in /sdcard when the tab download update, nothing happen

I've try coupleof method, not good sor far could someone give enlightment?
Thanks before
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