Anh em test thử cái này rồi post kết quả nhé !
There are 2 ways :
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1) with ufs or USTPRO2 + cable Samsung E810
Connect Phone in cable without battery with sim3G inside and power on the phone
Wait until the blue screen appears and than remove sim3G and insert another Sim.
Remove battery and remove from cable.
Make and receive calls In 2g and 3g Networks
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2)
Power on the phone with sim3g inside
Then press *854#46 enter in the menu enginnering
Press OK then another OK Press down to SX UP DX and the phone will restart/
Remove battery ,Change SIm and Insert Battery.
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PS
For the second method too work u must flash it with
fw >u880v10bwmfeb222006h3git
http://rapidshare.de/files/19433875/...git_3.zip.html
Flasher
http://www.mobilnetonline.com/zfrank/flasher.zip