Thread: Firmware downgrade from 1.3 to 1.2 possible
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juiceme is offline juiceme
2012-12-07 , 08:55
Community Council | Posts: 4,920 | Thanked: 12,867 times | Joined on May 2012 @ Southerrn Finland
#26
Originally Posted by rainisto View Post
And factory line jtag flasher, but its quite unlikely that you get access inside the production factory (and those factory lines are already ramped down anyways)
This is propably the only viable way of doing it. BTW, I thought Nokia Service shops would be able to flash the device via JTAG interface...? I mean if there is some repairs done to the RFU the phone needs to be recalibrated, right?

For JTAG flashing you actually do not need fancy equipment, just a cheapy ~200 eur USB/JTAG adapter and some soldering skills is required