Re: C139: get ftmtoolerror from ramloader

Hello Erik,

On Fri, 19 Mar 2010 09:51:48 +0100, "Erik Ekman" yarrick@kryo.se wrote:

Yes. Mine has special US Tracfone firmware which seems to have a particularly evil unlock scheme. Cutting one of the balls in the BGA seems the way to do it..

I had a quick look at the bootloader from a dumped Tracfone C139 firmware. Its nearly the same the Osmocom loader supports, however this special bootloader checks a flag in flash memory to decide wether to allow RAM download or not. If it is disabled, only the FTMTOOL check is done and no RAM download at the boot stage is possible.

Best regards, Dieter