My G6 Shows 'Corrupt SD Card' Error but Fails to Format it - T-Mobile LG G6 Questions & Answers

My G6 says that my SD card is corrupted, so when I go to format it the percentage completed immediately shows 20% then, after about 10 seconds, the formatting screen closes before it completes the format, and the whole time it shows that it's formatting it is always at 20%. Then my G6 acts as though there isn't an SD card in the phone, it only shows up again after I power cycle the phone. I have tested multiple MicroSD cards on this G6 and the same thing happens for every single one I tested, but I happen to have (limited) access to my mom's G6 and when I tested the same cards on her phone it says the SD card is corrupted, but successfully formats it and mounts it.
The MicroSD card that I would like to use with my phone is a 200gb SanDisk card.
Thanks in advance.
Update 7/2/2018

Hey, Can it be read/formatted in a computer with your sd adapter like a flash drive? if it can try reformatting it there then see if your device can recognize it. if it can't or it says corrupt / needs to be formatted and craps out... it's your SD card. it is the same one I had (probably..with red lettering on it?) That's the bad news, the good news is you can still go online and register it with SanDisk and they will send you a new one for free (cost of shipping to them the corrupt one, you have to pay.) But they will send a replacement, I think it took about 2 weeks to get one back.
Take care.

MoodSwinger said:
Hey, Can it be read/formatted in a computer with your sd adapter like a flash drive? if it can try reformatting it there then see if your device can recognize it. if it can't or it says corrupt / needs to be formatted and craps out... it's your SD card. it is the same one I had (probably..with red lettering on it?) That's the bad news, the good news is you can still go online and register it with SanDisk and they will send you a new one for free (cost of shipping to them the corrupt one, you have to pay.) But they will send a replacement, I think it took about 2 weeks to get one back.
Take care.
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I can plug it into a computer and format it successfully, it works in literally every other device that I've tested it in, including my mom's G6. That's why I have a feeling that the problem is being caused by some sort of issue with my G6. I have tried factory resetting my G6 two times already and it failed to fix the issue. I want to root my phone, but my software version is H87211h, and the method mentioned here has (as far as I know) only been tested on devices running H87211g.

Hello there. I have same problem with my LG G6, It shows every SD Card as corrupt and tap to fix. when i try to fix and format it get stuck on 20% its been more then two months and i am unable to use the memory card on it..
There is nothing wrong with Memory cards , it is the problem with the LG G6 either it is software issue or may be due to the fact that i have changed the Sim Tray as my sim tray was broken... The Network sim card work fine only problem is the Sd Card.... If any one have the sim issue or any solution .. Please share.. Thanks

zahid046 said:
Hello there. I have same problem with my LG G6, It shows every SD Card as corrupt and tap to fix. when i try to fix and format it get stuck on 20% its been more then two months and i am unable to use the memory card on it..
There is nothing wrong with Memory cards , it is the problem with the LG G6 either it is software issue or may be due to the fact that i have changed the Sim Tray as my sim tray was broken... The Network sim card work fine only problem is the Sd Card.... If any one have the sim issue or any solution .. Please share.. Thanks
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Click to collapse
Same thing happened to me, my SIM Tray broke and I bought a replacement from Amazon and that's when the issue appeared.

I updated my G6 to Oreo and now it shows what command is causing the formatting app to crash. I've attached a screenshot.

OK, so with the new info (sd tray breaking) I think what happens is when the SD tray is breaking, it's getting caught up on the little pins inside that contact the SD card and bending them a bit, and then that pin or pins are screwed up so it can't read the SD, and because it detects that there is one in there, begins to format and go thru the sectors when it gets to the messed up pin it craps out because it's not reading anything so it's saying the card is corrupt at that point. You have to send it into LG for a warranty repair. I had to do this too. go on the website, register your device, tell them the SD tray broke inside and it won't read the SD card or the SIM, and you will get a repair number within 24 hrs or so. Send in the device and you will get it back about a week turnaround time.
Good luck.

Most every time I've had this issue has been after an update or switching ROMs or kernel update and usually the issue is the kernel.
So basically speaking if you have an SD card corruption after any of these particular events reflash your kernel first.

I just bought a new Samsung 256GB microSD. I copied everything from my old card onto my PC, then onto my new card, and then put the new card in my phone. Android says it's corrupt and needs formatted. I try to format it and it always gives an error saying the command failed. Put the card back in my PC (which now can't use the card either) and performed a format (without the Fast option). Android still says it's corrupt and always fails to format it. So I put my old card back in the phone, and now it says it's corrupt too...
I had noticed that when I first opened the tray door it was being janky and wouldn't come out but a half inch. After reading this and getting the error for my old card too I decided to take the tray all the way out. Wasn't easy getting it out and now it's broken. Or already was broken. I tried cutting off the broken part and put the tray back, but now it won't even see a card or my SIM. So I've ordered a new tray. Hopefully that will solve everything... Unless my pins are jacked up as suggested earlier....

Well, got a new sim tray, and now it can read the SIM fine, but every SD card still says corrupt, and it fails to format it each time.
Out of warranty -- I bet the repairs cost half what I paid for the phone (like $200, crazy sale, two years ago). Sigh.
Any other thoughts on this?

The same problem with my lg g6 dual , did you have solution ?

Thanks to everyone pointing out that broken tray that damages the pin's issue. Seems that exactly what happened to the phone I gave my mom. Little to no chance here in South Africa that we could get it repaired for any reasonable price. At least this thread stopped me hunting around for a solution to the "keeps-formatting" but not working issue. Bit of a waste that I bought a new memory card, but not the end of the world. Wasting a few hours on a lost cause is much worst.

So glad I found this...
Unfortunately I already bought a new tray to replace the broken one, but now at least I know not to spend hours and hours on an issue I couldn't possible fix myself...

Related

SD card help needed

Hi thanks for reading my post,
I bought a 6gb microSD, slapped it in the phone and nothing. The phone doesn't recognize that there is a card in the slot. Tried AT&T technical support forum. She sent me to HTC support. Couldn't find anything there either.
I've tried the card in a friend's phone and it recognized it and asked to format it. Does anyone have a clue if there is something wrong with the phone? I would think that it should at least recognize there is a card in the slot even if it can't read it.
Anyone???
What brand of SD card did you buy? I have a Tilt and am using the Sandisk 6GB card and works like a charm. I didn't have to format it or anything.
One thing to try is go to an AT&T store and ask to see another phone. Put the card in and see what happens. If it works, have them replace the phone.
Mine too is a Sandisk. Sounds like there is something wrong with my phone. I'll take it back (still within 30 days).
Thanks.
Have you tried putting a different card in your phone? At least that way you could see if your card slot works!
You could also try formatting your 6Gb card using a PC, this sometimes helps.
Good luck.
I also have a 6gb microsdhc sandisk with my htc and it worked with no problem......

[Q] On my third N1 and still faulty - can't see SIM card

I am now on my third N1 after RMA'ing the first because of pink tinge camera issues and poor wireless performance. The second worked fine for a bit and then began to randomly reboot and lose the network. Often after rebooting it would go into a loop which only a battery removal would fix.
The third unit worke for about 10 minutes and after I managed to get it back to the state I wanted, it lost the SIM card displaying a no SIM card error message. I tried the SIM in other phones and it was fine (T-Mobile SIM) and other working SIMS were not recognised in the phone.
So yet another call to HTC and a request a replacement. I am flying close to the wind here since my warranty expires Jan 7 and there's no guarantee that the next RMA process will be complete by then.
Out of interest, in case it's just a simple SIM contact issue, how does one clean the contacts on the SIM holder in the phone?
if your restoring a back up or an app that could be the issue or a corrupted SD card.
How old is your SIM card? I am not 100% sure but for TMO in NY I had to replace my SIM when I went to a different Sony Ericsson phone, before I got the Xperia. After that my phones worked no problem.
But like the other member mentioned, you could be loading a corrupt system backup. I had a SD card cannot be read because of a bad build.prop I had installed.
It turned out to be a bit less complex than that. The sim was not sitting properly on the contacts but once I jammed a piece of paper on top of it to make it contact better, the phone recognized it. Not sure it this is a good long term solution or should I continue with the RMA process.
Well it's not perfect, but it works, so depends on how much you want the hassle.

My visit to the Samsung store

I visited my local Samsung store the other day as I was having issues with my phone randomly seeing my sim card as removed even after a new replacement sim,
they scanned the bar code and said what they are going to do takes about 20 mins, so I agreed, left my phone with them and went to go get a coffee.
when I got back the rep said its all done and if you still have the issues we will have to send the phone off for further inspection.
Is anyone able to tell me what it is they done to my phone? it appears to be exactly as it was before I left it with them. (still occasionally thinks my sim has been removed)
They probably just reformatted the internal storage of your device then reflashed the stock ROM back onto it. Think that it will fix the problem. I would take it back to the store and ask them to repair the SIM card reader as it's obviously malfunctioning.
DarkGuyver said:
They probably just reformatted the internal storage of your device then reflashed the stock ROM back onto it. Think that it will fix the problem. I would take it back to the store and ask them to repair the SIM card reader as it's obviously malfunctioning.
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Click to collapse
thanks, will do that when I can sort out a courtesy phone

Manually cut nano sim card and damaged tray

Normally I read all the instructions but no... not this time. I missed the warning on the back of the phone explaining that a manually cut nano card will hurt the tray. Now, when I insert a sd card (any sd card) either it does not find it either it says "damaged toshiba sd card, touch to fix". But format won't work, an error "unable to unmount" appears. Now I changed my nano sim card for a genuine one (I could not before, I was abroad), but it does not change anything. I though to write about my experience to warn others and also maybe someone knows if there is a way to fix it?
I manually cut my first card. It was a big old card so I had to cut half of the chip. Anyway, the phone was losing signal from time to time, but I replaced it with a new genuine one and it works perfectly. Try taking it for a fix if you have your warranty
Hey, you saved my phone. I just wanted to do the same you did. THANK YOU!

Bold N1. I cannot access the SD card.

I moved my SD card from my Samsung S7 Edge to my new Bold N1 and got a fix SD card error, so it took me to the format screen and it got up to 20% formatted and the the phone rebooted. I retryed several times, but no luck. Since it is a 200 gb card I thought it might need a 128gb card so I got one and it didn't format or recognize it either. I put the new 128gb card and into my S7 Edge and was able to format it. I have not been successful in contacting Blu (who I bought the phone from). Has anyone had this problem, or have a suggestion? Thanks very much for any info. They have a short warranty period. George
Any update on the problem?
skua123 said:
I moved my SD card from my Samsung S7 Edge to my new Bold N1 and got a fix SD card error, so it took me to the format screen and it got up to 20% formatted and the the phone rebooted. I retryed several times, but no luck. Since it is a 200 gb card I thought it might need a 128gb card so I got one and it didn't format or recognize it either. I put the new 128gb card and into my S7 Edge and was able to format it. I have not been successful in contacting Blu (who I bought the phone from). Has anyone had this problem, or have a suggestion? Thanks very much for any info. They have a short warranty period. George
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Click to collapse
Hello, I've been having the same exact issue that you had, the phone getting to 20% formatted and rebooting, though I only used a 128gb card as that's the max size they have listed. As it's been a while, I was hoping to see if you had any update on the issue. -Ahten
Ahten Xevious said:
Hello, I've been having the same exact issue that you had, the phone getting to 20% formatted and rebooting, though I only used a 128gb card as that's the max size they have listed. As it's been a while, I was hoping to see if you had any update on the issue. -Ahten
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Click to collapse
I haven't ran into that issue yet. . .
I currently have two Bold-N1, that I purchased the same day that this cellphone were launched, and never have had any issue when using it with 64GB and 128GB SDcards (Sandisk a Samsung).

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