Help Memory Card Issue

[MuraliDharanV]

Dear Experts,

My Mobile is Samsung Galaxy Grand GT-19082
Version - 4.2.2
Baseband Version - 19082DDUBNB1
Kernel Version - 3.0.31-1329016 se.infra@R0301-06#1 Thu Feb 6 22:07:33 KST 2014

Build Number JDQ39.19082XXUBNB2

I have been using 32GB scandix ultra micro sd card from the starting time and no issues even after updating 4.2.2, But suddenly today i found an issue that i was not able to rename or delete any of the files in my memory card. When i try to delete a file, i get a messge - delete failed. When i copy any file from PC to memory card, i get a message - the disk is write protected.

When i remove the card from the mobile and can do any action using a card reader. It works fine.

Please some one help me in this.

 

[Rukbat]

Turn the phone off. Pull the battery. Wait about 5 minutes. (This resets all the hardware - it sounds llike a hardware issue.) Replace the battery and boot up. See if it's fixed. If not (and it's a pretty drastic step), back up EVERYTHING that's not already on the cloud (contacts, etc.), including your apps and any data from them, you don't want to lose (Helium is good for this - just be sure to back the apps up too, the default is only backing up the data). Factory restore. Boot to recovery (Home/Volume Up/Power). Clear cache. Clear Dalvik casce.

Restart the phone. It'll take a while to boot up. The apps all have to be "compiled" again. It could take 10 minutes (or even more).

If that doesn't fix it you have a hardware problem and what you do from there is something you have to decide (repair, replace).

Originally I would have first suspected the card, but you say the card works, so if it is the card, voodoo really works and someone doesn't like you. But that's how you troubleshoot a problem like this - see if that card works somewhere else and see if another (known to be good) card fails to work in the phone. I think you've pretty much localized the problem to something in the phone.

 

[socrates0]

Usually its been observed that if the memory card is of the capacity as the maximum capacity allowed in the phone, then there are usually problems. I always recommend using a smaller card than the max capacity.

 

[Rukbat]

I've never found that to be the case and (other than my current phone, because 128GB cards are a bit expensive), I've always used the largest card a phone could take. But I buy SanDisk cards, not some cheaper, "maybe good, maybe not" card. (And there are a LOT of couterfiet cards out there too. The card says 32GB, the controller in the card claims it's a 32GB card, but it's got a 4GB [or 2GB] memory chip in it. Fill the memory chip, then write to it and you've wiped it. "How come I can't put more than 4GB on my 32GB card?" "Because it's really a 4GB card, and you've been ripped off.")

 

[socrates0]

I have found sandisk to be v reliable too & yes one has too be v careful while buying as there is a lot of couterfeit stuff floating around.