Here's the Nokia 6124 classic solution for memory card not detected problem. This solution shows some simple hints on how to fix the phone if such problem occurred.
Simple steps to fix the problem: Check and try to flash or restore the device flash firmware. Clean the microSD card slot for possible oxidation build ups.
If the software and basic procedure doesn't solved the problem, refer to the solution below and locate those highlighted components shown and do some test and check-up procedures.
Simple steps to fix the problem: Check and try to flash or restore the device flash firmware. Clean the microSD card slot for possible oxidation build ups.
If the software and basic procedure doesn't solved the problem, refer to the solution below and locate those highlighted components shown and do some test and check-up procedures.
Nokia 6124c MMC - memory card not detected solution
You may first check and rad all the voltages indicated above, these are the supply voltage that make the MMC operation works. If all these voltages seems all working. The problem may possibly lies on the MMC transceiver chip. Reheat, rework or replace it if necessary, these option may only possibly fix the problem.
