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lundi 21 septembre 2015

Problem with Radio/Modem: Unknown IMEI and Baseband-version



I flashed a self-build tar with a recovery image with Odin.
Afterwards the system did not boot up (stuck at CM boot animation) - this could be fixed by flashing Stock 4.1.2 ROM (Was 4.3 before using CM).
CM now boots up, but IMEI and Baseband-Version is unknown. I tried restoring EFS (EFS Professional backup) and I tried flashing an modem.img backup (from phillz recovery via heimdall) as well as flashing the modem.bin from 4.1.2 and 4.3 stock rom (heimdall).
Trying to flash Stock ROM (4.1.2 or 4.3, ODIN) results in "unsupported Version" on download mode screen (on the phone) and error message in Odin.
After this attempt, the phone show "firmware upgrade encopuntered an issue. Please select recovery mode in Kies & try again"
the "emergency firmware recovery" in Kies does not list the device as "device requiring emergency recovery" - probably because it was not flashed using Kies.
I can flash all parts of the 4.3 stock ROM manually using heimdall BESIDES sboot.img (BOOTLOADER) - the "unsupported Version" is shown again on the phone,
Heimdall reports: "failed to confirm end of file transfer sequence"



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