NOKIA 1600b RH65..............imei starting with 010783******
no need to write pm or erase full flash
just FULL FLASH WITH RH64 USING VERSION 6.00 MCU+PPM+NAI and UNLOCK AS USUAL
with any software UFS JAF UB
AFTER SOFTWARE PROCEDURE OPEN THE PHONE AND REPLACE THE TOP RIGHT TWO BLACK FILTERS WITH CAPACITORS DIAGONALLY.
THE PHONE IS NOW WORKABLE 100% ON 900/1800 mhz BAND
TESTED ON HUGE QUANTITY