Develop Bugs

[Q] HTC Desire unable to mount SD card

Hi All,
I have a problem with my SD card. My phone doesn't recognise SD card after I created ext4 partition through partition magic on windows 7. Here is what happened.
- I have rooted desire running CM 7.0.3.
- I wanted to go back to Starburst 1.4 rom.
- I have class 4 16 gb sd card (fat + ext3) with 512 mb of ext3 and rest fat32 (this was when everything was running good)
- I flashed the new rom through CWM, but only got like 54 mb on sd left.
- So I manually formatted ext3 and changed it to ext4 using partition magic on windows 7 (connected sd card through a reader).
- After that I flashed the new rom, but still got the same size left.
- After that I went back to CM7.0.3 which is working fine for me.
However, at this time, my phone doesn't recognise my SD card.
- I saw that I can't format ext in recovery as i get this error
E:Can't mount /dev/block/mmcblk0p2(File exists)
Error mounting SDEXT: !
I believe I was able to install CM7.0.3 coz it was a small rom was fit directly into phone's internal memory.
At this time, I can't see my SD card on phone. Can't play music or install any files or anything.
Looking for some quick help.
Thanks,
Satyam

Hi,
I had the same problem.
I got someone to format my SD card in there phone, then reverthing worked.
Regards
Matt

topgunmatt said:
Hi,
I had the same problem.
I got someone to format my SD card in there phone, then reverthing worked.
Regards
Matt
Click to expand...
Click to collapse
Hi Matt,
So are you saying that you got your SD card formatted by someone else using Rom Manager ?
- As of now, when I click on the inbuilt ROM Manager in CM7, it says " The SD Card needs to be mounted to use ROM Manager!"
That means my SD card is abviously not read by my phone.
Looking for some help. I don't want to do something silly at this time.
Atleast, as of now my phone is not bricked and is working, just the SD is not.
Any suggestions/comments or link to my problem is more than welcome.
Thank You

Hmmm, i smell another usb brick here, we've had so many these days, and all by people using cwm and flashing gb sense roms...just to prove i'm right, can you connect the phone to your pc? If you're not able to do that, then u have 100% chance it's a usb brick.

OMG !! yeah you're right.. now when I connected my phone using a USB, it doesn't give me the option to "mount USB".
What do to from here ? I don't know what is a USB brick and am pretty poor with linux commands !!!
Plz help.. However I can see a a couple of ROMs through recovery mode in my SD card, but can't flash those which require an EXT.
Plz help !!!!!

sroy001 said:
OMG !! yeah you're right.. now when I connected my phone using a USB, it doesn't give me the option to "mount USB".
What do to from here ? I don't know what is a USB brick and am pretty poor with linux commands !!!
Plz help.. However I can see a a couple of ROMs through recovery mode in my SD card, but can't flash those which require an EXT.
Plz help !!!!!
Click to expand...
Click to collapse
Haha, calm down its'no biggie believe me
Here you can find a tutorial on how to fix it: http://forum.xda-developers.com/showthread.php?t=691639
Feel free to ask if you need further help (bus is farkin boring).

vnvman said:
Haha, calm down its'no biggie believe me
Here you can find a tutorial on how to fix it: http://forum.xda-developers.com/showthread.php?t=691639
Feel free to ask if you need further help (bus is farkin boring).
Click to expand...
Click to collapse
Hi,
Are you saying that formatting SD card and making fresh ext partition through a media reader will not help in this case ?
I am very confused so to say.. I read the link that you posted, it talks about CID which I'm not able to find.. Can't see that option in fast boot (recovery).
Is there some other way to fix all this ?
Any more tricks/ suggestions are more than welcome..
Please see detailed info about my issue in the post

sroy001 said:
Hi,
Are you saying that formatting SD card and making fresh ext partition through a media reader will not help in this case ?
I am very confused so to say.. I read the link that you posted, it talks about CID which I'm not able to find.. Can't see that option in fast boot (recovery).
Is there some other way to fix all this ?
Any more tricks/ suggestions are more than welcome..
Please see detailed info about my issue in the post
Click to expand...
Click to collapse
Nope: i'm sorry but there is no other way...the problem lies in the misc partition, and that one doesn't get touched by simply toying with your sd, it's on nand, and no rom flashing/nandroid restore can touch it either. This process is the only way to go. CID can be obtained via adb command, i hope you'll have it installed and set up correctly.

i just fixed my brick lol . i found out bcuz i coulnt enable bluetooth

vnvman said:
Nope: i'm sorry but there is no other way...the problem lies in the misc partition, and that one doesn't get touched by simply toying with your sd, it's on nand, and no rom flashing/nandroid restore can touch it either. This process is the only way to go. CID can be obtained via adb command, i hope you'll have it installed and set up correctly.
Click to expand...
Click to collapse
Hi,
Okay I get it.. I need to fix my nand partition, now question -
1) I can figure out the 1st step "Find out your CID. Go into fastboot mode, and do 'fastboot oem boot" - Nothing happens when I click on fast boot option in recovery mode. The other method CID generator also asks for CID.. how do I get that.. that's my biggest question.
2) How can I see the rom version.
I know, I might me sounding stupid, but I'm not a pro.. used to love flashing new ROMs earlier and this time I just messed it up.
Need some step-by-step help.. I might be asking for too much, but I trust this forum and believe Android has too many fans hooked to it.. so I will get some help

sroy001 said:
Hi,
Okay I get it.. I need to fix my nand partition, now question -
1) I can figure out the 1st step "Find out your CID. Go into fastboot mode, and do 'fastboot oem boot" - Nothing happens when I click on fast boot option in recovery mode. The other method CID generator also asks for CID.. how do I get that.. that's my biggest question.
2) How can I see the rom version.
I know, I might me sounding stupid, but I'm not a pro.. used to love flashing new ROMs earlier and this time I just messed it up.
Need some step-by-step help.. I might be asking for too much, but I trust this forum and believe Android has too many fans hooked to it.. so I will get some help
Click to expand...
Click to collapse
Also just want to let the forum know that I'm running a custom ROM (CM 7) and don't see the option of software info under Settings>About phone. Any other way to find out rom version ???????/

Ok, sorry man, i was out for a ride
To see the CID you have to type "fastboot oem boot" in the terminal, after navigating to the path where you have the sdk, for example:
"cd c:/sdk/tools"
"fastboot oem boot"
Then you should get all the info, together with the CID ofc...obviously you need to have adb installed and working in order to do that (there ia a lot of tutorials for that, just use the search function).
As to rom version, you don't need it, just download the mtd0.img, open it with the hex editor and mod it with your CID, then go for the next step

I dont believe you have bricked your phone, i think you have created a partition on it without making it a primary partition along with the fat32 parition.
boot into recovery and mount your SD card to your PC. Reformat the whole card and then it should work again, you may just be able to go into your partition software and amend to show 'primary' on each, if not read on. Couple of options then, download ROM manager from the market and reformat the ext3 using rom manger if not do it via your windows software but make sure both partitions are set to 'Primary'.

vis-tec said:
I dont believe you have bricked your phone, i think you have created a partition on it without making it a primary partition along with the fat32 parition.
boot into recovery and mount your SD card to your PC. Reformat the whole card and then it should work again, you may just be able to go into your partition software and amend to show 'primary' on each, if not read on. Couple of options then, download ROM manager from the market and reformat the ext3 using rom manger if not do it via your windows software but make sure both partitions are set to 'Primary'.
Click to expand...
Click to collapse
It's a usb brick, not a plain brick: when you plug it to pc the phone usually doesn't even light up the led.

sorry, i read that he had full use of his phone bar the SD card

- I saw that I can't format ext in recovery as i get this error
E:Can't mount /dev/block/mmcblk0p2(File exists)
Error mounting SDEXT: !
Click to expand...
Click to collapse
hi, seems you got bad partition on your sd card, since it s normal that you can't mount sd while plug on usb.
did you already put out your sd card out the phone and try to read it with a usb scard reader plug on your computer??
cid error mean you have messed-up your misc partition which is the one in your nand where the recovery is located... didn't see any error about this in your thread...
in the boot, should fail with error misc partiton cid unknown etc...
have a try about sd card reader it's easer than misc error fix
give a try on this site and try using gparted cd live... don't need to be expert in linux command (it s a graphical interface) should you know that FIRST FAT32 PRIMARY partition and LAST EXT3 (is less fast but really more stable and relyable fs) PRIMARY partition

hi, still me sorry for spamming, just found a nice TUT using gparted on xda http://forum.xda-developers.com/showthread.php?t=535914

fragargon said:
hi, seems you got bad partition on your sd card, since it s normal that you can't mount sd while plug on usb.
did you already put out your sd card out the phone and try to read it with a usb scard reader plug on your computer??
cid error mean you have messed-up your misc partition which is the one in your nand where the recovery is located... didn't see any error about this in your thread...
in the boot, should fail with error misc partiton cid unknown etc...
have a try about sd card reader it's easer than misc error fix
give a try on this site and try using gparted cd live... don't need to be expert in linux command (it s a graphical interface) should you know that FIRST FAT32 PRIMARY partition and LAST EXT3 (is less fast but really more stable and relyable fs) PRIMARY partition
Click to expand...
Click to collapse
Fixing misc doesn't take more than a minute if you have a working adb...repartitioning micro sd card takes loads of time instead, especially if it's big, coz you have to backup all of your data then copy them back, and that's a pain, especially if the sd isn't very fast.
Anyway you might be right there, just the other day a guy had a similar issue caused by multiple ext partitions not being recognized properly. I just thought it was a usb brick coz it's very common since the new gb sense roms rolled out and people started partitioning like crazy with cwm (which really SUCKS at that), and this either cause misc corruption or messed partitions on sd card: i'd suggest everyone to partition with amon them flash back any 3.0+ cwm to flash the rom, if you don't have the chance of using linux live cd (but you really should).

All sorted --------- RESLOVED !!!!
Okay Listen all Desire Owners-- I was able to fix this USB brick without having to go through all which was available on internet..
What I did -
1) Came home and formatted my EXT4 to ext3 and simply reflashed cm7 rom
All worked like charm - Now My SD card is mountable and works perfectly

Good for you
Anyway make sure you set up adb properly on your pc, it will save your life some day: it takes a while but it's worth it...i wouldn't get inti the rom flashing thing without it. Just a suggestion
Bests.

I have messed up..possible brick

I have have issues! My phone is rooted s on. For some reason when I do a wipe in recovery it says it cant mount E: /dev/block/mmcblk0 or p1. Really stuck please help.
Thanks

Sounds like a problem with your sdcard, try formatting and/or repartitioning it.

Chilldesire said:
I have have issues! My phone is rooted s on. For some reason when I do a wipe in recovery it says it cant mount E: /dev/block/mmcblk0 or p1. Really stuck please help.
Thanks
Click to expand...
Click to collapse
Seems to be a problem of the SD card. Have you tried it with another one? It could also be that it isn't properly formatted, but as you already tried this it doesn't seem to be the problem. One other possibility is - if you have more than one partition on your SD card - that the one its trying to mount has the wrong filesystem. In the topic title you mentioned mmcblk0p1, so if you now formatted the card using your PC it could be that your PC swapped over the FAT and EXT partitions, meaning that p1 is now EXT and p0 FAT, although it should be the other way round. If you have more than one partition on it, try to remove it and format the whole card in FAT32. You could also try to reflash the recovery image.
Click to expand...
Click to collapse
Source: http://android.modaco.com/index.php?showtopic=321440&mode=linearplus
But copy all your important data on your sd-card to your pc first.
No warranty for any damage.

problem in mounting /dev/block/mmcblk0p1(or /dev/block/mmcblk0)

well i would like to know about the issue and a detailed description how to get out of it ... as i m not familier with partitions and all in motorola defy as well as how to fix it ..
wht i did was i installd shadows 2.3.4 rom and then tried to revert back to original one with full flash with 2.59 eclair rom. everything went well and fine until .... in eclair i tried to backup the current rom. while entering into recovery its showing
cant mount /dev/block/mmcblk0p1 or (/dev/block/mmcblk0) (No such file or directory)
can someone tell me in a detailed way cause i havent worked with gparted or something like tht to fix the partitions of motorola defy in this manner..
how to proceed in this to fix this problem so that i can use cwm again to install roms and all ?
please help !!!!!!!!!!!!!!!!!

Did sdcard work within Android eclair?
Try to reformat your SDCard using windows. (fat32)
(Backup your card)

okay i formatted ... now shall i reformat it via the phone again ? or should i go directly to the cmw ???
Edit : i formatted sdcard via windows . and opened bootmenu to backup .. yet the problem is persisting !!

joydeep1985 said:
okay i formatted ... now shall i reformat it via the phone again ? or should i go directly to the cmw ???
Click to expand...
Click to collapse
Do not format via cwm. Did you use bootmenu or only cwm?

i used the windows to format my sdcard to fat32 and i m using the bootmenu...

walter79 said:
Do not format via cwm. Did you use bootmenu or only cwm?
Click to expand...
Click to collapse
can you please tell me whats the actual problem which is happening here ??? i am widout any clue why this is happening .. did i mess up my partitions while full flash with sbf of 2.59 ???

Try this custom rec
format your sd card, or insert a a new one preferable Class 4
after that
attached is the file.
Usb debug on
install it
usb debug off
restart it
open the software and boot into recovery.
hope it works.

Thanks
rachit2588 said:
format your sd card, or insert a a new one preferable Class 4
after that
attached is the file.
Usb debug on
install it
usb debug off
restart it
open the software and boot into recovery.
hope it works.
Click to expand...
Click to collapse
Thanks it worked

rachit2588 said:
format your sd card, or insert a a new one preferable Class 4
after that
attached is the file.
Usb debug on
install it
usb debug off
restart it
open the software and boot into recovery.
hope it works.
Click to expand...
Click to collapse
your a life saver

TWRP won't recognize external SD card

Right now there is no ROM installed on my phone because I just wiped my phone, but when I went to install a new ROM, it doesn't seem to recognize my external SD card. I tried 2 SD cards and neither of them work, but they work on my other phone. How can I fix this issue? I went to mount and it says "E: Unable to mount '/external_sd'.

Update twrp if available, if not try to reflash it and if it still doesn't work then try cwm
Sent from my SGH-M919 using Tapatalk

Thanks for the reply. Which method of installation would be the best? Odin? I only have access to recovery as far as I know.

Yes Odin
Sent from my SGH-M919 using Tapatalk

The latest TWRP doesn't seem to recognize my SD card either. Also both of them are saying that my device is not rooted and it asks if I want to fix root. I'm trying CWM now but it isn't finding anything either.
Edit: CWM says my device isn't rooted as well.
Edit 2: Flashed http://www.androidfilehost.com/?fid=23212708291679687 with Odin and when the phone boots up, it's stuck on the Samsung logo. Any thoughts?

Factory reset. Incompatible data probably causing boot hang.
This will wipe apps and data.

Thanks for the help everyone. I flashed back to stock and re-rooted. However it still won't read anything from the external SD. Does this mean the SD reader is broken?

Can you plug it into the computer? Does it see it there? If so what is the file system type? Can you format it?

DocHoliday77 said:
Can you plug it into the computer? Does it see it there? If so what is the file system type? Can you format it?
Click to expand...
Click to collapse
Yep, the computer only sees the phone's harddrive, not the SD card. On my other phone, the SD card is working fine.

No, I mean plug the card into the computer. Not the phone. But if another device uses it ok, then you msy just need to reformat using the computer.

DocHoliday77 said:
No, I mean plug the card into the computer. Not the phone. But if another device uses it ok, then you msy just need to reformat using the computer.
Click to expand...
Click to collapse
Reformat the card? I will try that. But I have two SD cards and neither work on my S3, and both work on my S4.

That tells me the cards are ok and something is probably wrong with the device then. If you format one card to fat32 and it still can't read it, its probably hardware.

@bjornturoque Here was my problem. Exactly like yours. I am BL unlocked, Rooted, TWRP 2.8.7. I am having a problem with the ext sd card not being read in TWRP. I have had ver 2.8.5 / 2.8.7 / 3.0.2 of TWRP and none of them will read the card. I have tried formatting the card with my Note4, GS 5, Tab S, and my PC using SD Card Formatter. Still getting the same result.
Here is what I did to fix it.
Install Xposed, Download Wanam Xposed, activate the module, open and go to security hacks and check the box for SDcard RW permission, then reboot.
I just did this to mine and it fixed my problem. Hope it works for ya.

Format SD-card via Windows (FAT32/Default Allocation).

stajam said:
...Here is what I did to fix it.
Install Xposed, Download Wanam Xposed, activate the module, open and go to security hacks and check the box for SDcard RW permission, then reboot.
I just did this to mine and it fixed my problem. Hope it works for ya.
Click to expand...
Click to collapse
No, doesn't work
I have a 128 GB SD with exFAT, it worked without problems in TWRP 3.0.2 recovery under CM12.1
Now I am on CM13 and beside the bluddy permission google-bug it works in the system but not anymore in TWRP 3.0.2 recovery.
I tried to fix the permissions to write to external sd (this 128 GB sd) by adding stuff to the /data/system/packages.xml file, see this post.
But I didn't change the wrong thing I am pretty sure and doubt that this is related, as TWRP comes without using this file, I guess.
I flashed 3.0.2 again with Odin, no change.
Fact is, that I installed CM13 with another SD-card, a 64 GB FAT32, not this one. Maybe it never worked under CM13. But anyway, what has TWRP to do with CM13 and its permissions? TWRP is previous to any CM system, which is not running at TWRP times.
What could that be?

I flashed now CWRM v6.0.4.7 (ClockworkMod Recovery) but the problem persists:
E: Can't mount /storage/sdcard1
Error mounting /storage/sdcard1
Click to expand...
Click to collapse
What is it? The sdcard is working flawlessly in the running system and another FAT32 sdcard works in TWRP. What do I miss here?
Is it that TWRP and CWM doesn't know exFAT?
I think to be quite sure that this was working, I have exFAT since a while now.

Deleted.

[Q] HOX - SDCard Can't be mounted issue again.

Hi guys, I was trying to partitionate my sdcard to get a bigger /data space.
After a try, I decided to get me Sdcard back to previous state...
0.mounted usb to my pc.
1. formatted in fat32 format, as primary type with "minitool partition wizard ..."
3. umount and restart the phone, surprised my partition cannot be mounted yet and it's not recognized on my system.
So... Here comes the dispair... I erased all my phone stuff, format and delete all sort of things but /sdcard cannot be mounted...
After that I'm charging the phone right now on recovery mode, later I'm gonna try to install Ruu but I don't have the latest, only the previous... Is that any problem??
Tks guys!!

blankfile99 said:
Hi guys, I was trying to partitionate my sdcard to get a bigger /data space.
After a try, I decided to get me Sdcard back to previous state...
0.mounted usb to my pc.
1. formatted in fat32 format, as primary type with "minitool partition wizard ..."
3. umount and restart the phone, surprised my partition cannot be mounted yet and it's not recognized on my system.
So... Here comes the dispair... I erased all my phone stuff, format and delete all sort of things but /sdcard cannot be mounted...
After that I'm charging the phone right now on recovery mode, later I'm gonna try to install Ruu but I don't have the latest, only the previous... Is that any problem??
Tks guys!!
Click to expand...
Click to collapse
flash TWRP latest format sd card from TWRP then flash Philz 5.15.9 and mount sd card

Thant said:
flash TWRP latest format sd card from TWRP then flash Philz 5.15.9 and mount sd card
Click to expand...
Click to collapse
Tks pal, TWRP solved my problem, after use it, I installed AHDR again... Tks so much!!