My memory cards not working

you r right optimus one hangs on 8 gb card many times card automatically get removed and some time phone restarts however 2gb card is working fine

nothig... some memory cards are not supported in lg kp500 buy another one and try it there itself... hope this helps..

can it be read in your PC or cardreader?

try reformatting it, the other thought is that your unit cannot read a 2Gb SD card and isd limited to 1GB max. If neither is correct ditch it a 2Gb card is only $8-10 and not worth the stress.

From the settings menu, choose phone settings, then Memory Manager.then handset common memory. Chances are, this will nearly all be used up. Move any pictures, video, music etc from the internal memory to the external memory card using the My Stuff application, then move to external memory. This should solve the problem & any new photos will be stored on the external card. When theinternal memory gets full, the Renoir does funny things!!

It sounds like you have two issues here. Most LG phones use a preset factory security code 0000. If you did not change it, it should still work for you.

Make sure that you are using your memory card as your primary storage device. You should be able to find this menu in your tools options. Then simply attach a usb cable to the phone and your computer, and your computer will recognize the mamory card as an external storage device, and you should be able to transfer your files back and forth quite easily.

Format the micro sd card first and then re-insert . Sometimes the problem can be rectified

the memory card is working with LG shine and not with MOTO slvr, then there problem with your moto set and not with you memory card. There are virus in your MOTO set.

Something is wrong with the card. Maybe it's corrupted.
But what your computer means by I/O Error is Input/Output Device Error, which means the card has issues.

Hope this helps!

see there can be 2 reasons.
firstly that your memory card is not in the good state anymore.
secondly, this cell supports upto 2 gb memory card.so you should not go with 2gb i.e it's max. capacity, instead u go for 1 gb card.it wont create any problem.
you should not use the memory card of the max. capacity which ur mobile supports as most of the times it creates problems like this and even keeps on hanging frequently.

The PIC or EEPROM inside these cards may not be working. I guess you best bet is to buy a new one try Kingston brand or go with another Sandisk.