[Q] Bootloader mode shows SD UNKNOWN 2

[vosathanh]

Hi Everyone,

My bootloader shows:

Seucurity Unlock

PD29*** SS-BC (4K)
SPL-1.57.2250.0(113571)
MicroP(LED) 0X07
TOUCH S1(V1.8,#1624)

SD UNKNOWN 2
Partition Info-v211v413

Serial

The problem here is the SD cannot be recognized but i can still flash any ROM without problems, but after flashing deepshining 7.77, my phone got boot loop around 4 -5 times then appeared a message SD card is not compatible,..... and must choose turn off.

Just flashed back to the original ROM, and the problem still persists. Any suggestions or solutions should be greatly appreciate.

Tks in advance.

 

[vosathanh]

I replaced for another brand new SD card and no boot loop more. Everything go smoothly, but SD card Unknown still on the tri-color sreen. I checked so many pages on google but it seems noone got the thing like me. Any advice pls???

 

[vosathanh]

It seems noone ever get this problem b4. My htc hd7 is now repeating boot loops and still says sd card is changed, not compatible, .... turn off????????? Any help pls???

 

[Magpir]

i have the sam eproblem frequent reboot and getting storage card not working eeror, but phone has not problem recognising the card and phone can sometimes boot to homescreen just that afeter turning on stuff such as wifi and 3g it reboots and works a while again to reboot...

this happened on the 7.8 custom roms ....

 

[faustolg]

It seems noone ever get this problem b4. My htc hd7 is now repeating boot loops and still says sd card is changed, not compatible, .... turn off????????? Any help pls???

You must change the card reader, it only cost ~$10-$15
Google this:
"OEM HTC HD7 Sim Card and SD Card Reader"

 

[Magpir]

You must change the card reader, it only cost ~$10-$15
Google this:
"OEM HTC HD7 Sim Card and SD Card Reader"

yes thats what i think the problem is about because i had this message storage card not working even though the sim card was not inserted.

by right the problem is not with the sdcard because it is a class 4 approved card. its the reader i think. But i also had errors in wifi not connecting

it is a known fact that HTC uses cheap quality or inferior made parts in their phones.



but how to ensure thats the problem it could be anything including motherboard faulty .
or antenna faulty

best thing is sell the phone for spare parts and get a new one...

 

[marty83]

Hello,

I have the same problem. Every time I activate the SIM card, my phone restarts after some time. I changed my SD Card up to 32 GB and got reboots und freezes. So i changed back to stock 16 Gb SD card. I flashed it with the Deep shiping ROM v 8 and still get reboots ;( I need really help wit that......

 

[Magpir]

Hello,

I have the same problem. Every time I activate the SIM card, my phone restarts after some time. I changed my SD Card up to 32 GB and got reboots und freezes. So i changed back to stock 16 Gb SD card. I flashed it with the Deep shiping ROM v 8 and still get reboots ;( I need really help wit that......

like stated above, it is the problem of the sdcard and sim card reader, u need to change it .

as the htc phones mainly use sdcard sas storage compared to nand,. they constantly keep working ust like yr pc card reader.. and will get burnt quite easily

 

[aclegg2011]

If the HTC hd7 says you have an incompatible card, the os will run really slow and not even boot. For 16 GB needs to be class 2 SanDisk. For 32 gbs it should work with all 32gb class 2 and 4 SanDisk micro sds. Can't use cheap micro sds on our phones. And don't forget to format the card holding volume down button to access crc menu.

Sent from my HD7 T9292 using XDA Windows Phone 7 App

 

[faustolg]

Please keep those MYTHS out of the answers

If the HTC hd7 says you have an incompatible card, the os will run really slow and not even boot. For 16 GB needs to be class 2 SanDisk. For 32 gbs it should work with all 32gb class 2 and 4 SanDisk micro sds. Can't use cheap micro sds on our phones. And don't forget to format the card holding volume down button to access crc menu.

Sent from my HD7 T9292 using XDA Windows Phone 7 App

because it's a well documented fact(here on XDA) that the class restriction does not apply anymore, just look how many user are using class 6-10 on their phones, even the 64GB SDXC on different brands not just sandisk.

Keeping a myth alive hurts the collective knowledge, because stops the research... the myths are the answers that ignorance needs to be repeated to keep people ignorant.(no offense intended)