Card Reader breaks cards on writing, reads fine

[wojtek]

(05-10-2016 12:09 PM)damaltor Wrote:  After repairing my card reader, i was using it for a few days now on a more or less daily basis. It always worked flawlessly, i never had problems.
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So, it looks like the reader reads everything fine, but breaks cards on writing. I disassembled the reader again and cleaned the head, to no avail. I also used the head cleaning card, also without any news. Any ideas on that?

I have no that reader, so my opinion is based on my experience in repairing electronic devices only.
As you repaired this reader some time ago I suggest you should disassemble it again and double-check what you had repaired.
If cleaning of the writing head have not helped you could check all the connectors inside, pull out every connector, perhaps clean the contacts with isoprophyl alcohol, and put in again.
If above fail to fix the problem you could check the mainboard and the soldering points for short-circuits and bad solders
As the reader worked OK before you have good chances to fix the problem.