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I started using my HD2-7 with an 8Gb class 2 Sandisk SD card that worked perfectly. But I wanted a bigger SD card, so I bought a 16Gb class 2 Sandisk card that gave me a lot of hanging, reboots and lags in the HD2. I had to abandon the card and went back to the 8Gb card...until I stumbled on this post. I followed it and now the card has been working perfectly for about 4 days without any trouble.
If you are having trouble with your card, please try this method and post your result. I think the guy might have stumbled on the solution to the SD card problems.
Barmalei said:
Many people are experiencing problems with SD cards and/or random reboots, and I think I solved mine (I am rather a newbie), so here is my report.
Few days ago I installed WP7 (thanks a lot, DFT guys) on my U.S. T-mobile HD2 with its original 16 GB class 2 micro SD card, using radio 2.10.50.08.2.
Installation went very well, the phone worked very smoothly and very fast, except it started freezing and randomly rebooting. Hard resets didn't help. Then I removed SD card and reset the phone - it worked very well and fast and did not have any reboots.
I tried reformatting the SD card to Fat32 (using free software SDformatter - it fully clears the card after WP7 use and removes partitions, make sure you put Format Size Adjustment "ON" in Options) and reset the phone with the card. It did not help, the reboots were the same as before.
So I decided that the 16 GB card wasn't good for WP7 and bought a PNY 4 GB class 4 card for $10 at Staples. I reset the phone with this new card inside. At first everything worked very slowly, but at least the reboots completely disappeared. In few hours everything became fast, except for certain things, like it would take 15-30 seconds for the camera to reset after shooting a 1 min video.
Finally, I decided to try something else. I reflashed radio to 2.15.50.14 with the original 16 GB card (reformatted again), and everything seems to work very well -it's fast, and there has been no reboots so far in few hours. The battery also seems to drain with a normal pace.
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The guy did alot of different thinks to try to fix his SD card problems, in my opinion it would be hard to identify what actually fixed the problem if any. I had 2.15 radio and changed it to 2.10 as others where saying it would lower battery drainage which it seemed to have changed slightly. The only reason I posted this is to just make people aware before they start reseting there phones with experiments but I also understand that without the above sort of posts the forum wouldn't exist as so much is discovered by experiment.
My NC locks up/ freezes semi often. Usually like 2-3 times an hour. Restarting always fixes it but its crazy frustrating. It did it on phiremod and on cm7. Right now I'm on Cm7 nightly 108 and dagrins oc newest. It freezes are random times and while using any number of apps. I can not find a common thread. Any thoughts or suggestions? Also imrunning from internal memory and I have an 8gb storage card.
The most common reason for having FCs in the NC is due to the SD card. Generally, the newer/fast (class 10) type cards create issues for us. It has to do with the speed of small read/writes. The "safe" zone is to get a class 4 or class 6 card (I run with a 8GB class 6, also a 4GB class 4 - and both haven't given me any issues).
the other issue might be over-clocking. If you're kicking up the CPU speed beyond the 800 MHz, you will start making the system more unstable. If you had an iffy card to begin with, the problem will now seem more aggressive.
You could try reducing your max CPU (settings / cyanogenmod settings / performance / cpu), or replace the SD card with something that falls within the NCs stable range (class 4 is a good point to start with).
I've also found that the NC can have a poorly seated SD card and it cause all kinds of FCs or lockups.
When I do a backup of my SD card with Win32 imager, and then put the SD card back in - there've been 2-3 times where, on bootup, the whole environment just flakes the hell right out. Powering off, and reseating the SD card fixes it right up. So, my guess is my NC has a crappy SD card reader in it, or the seating of the SD cards is fairly sensitive.
You could always try that, too.
Ya. I havent been getting force closes really. Just the lock ups. I'll try a lower setting for the CPU see if that helps. The card that's in this is a like 3 year old 8gb one. I assumed it would be a lower class card. How can one discover what class the card is?
hexatron said:
Ya. I havent been getting force closes really. Just the lock ups. I'll try a lower setting for the CPU see if that helps. The card that's in this is a like 3 year old 8gb one. I assumed it would be a lower class card. How can one discover what class the card is?
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Sometimes on the card, and always on the packaging, is a small C with a number in it. That's the class of it. If it's a few years old, it's probably a class 4, which should be fine.
You're probably running into hiccups with overclocking, would be my next best guess.
Ahh, There it is. Class 4, Yah even after removing the overclocking it still freezes. Hmm.
It may help to get rid of any unused apps. I've had apps from some of my downloading sprees that have caused problems even when not using them. Clearing those first is a good step to finding the one causing the problem. This is just based off my experience.
IFLATLINEI said:
It may help to get rid of any unused apps. I've had apps from some of my downloading sprees that have caused problems even when not using them. Clearing those first is a good step to finding the one causing the problem. This is just based off my experience.
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He makes a good point - something in the background may be causing you issues. I'm constantly cleaning house on mine - I'll download a neat app, then hate how much more my battery drains.
Is the card (that you are using) a SanDisk card?
Other brands (Lexor, Transcend, Samsung, Kodak, Toshiba, etc.) are ok for camera, but are not recommended for NC.
I think I finally got it. I did the new nightly CM7 and cleared data, devorac and such. So a full on clean install. And the card is a Kingston. But all probs are fixed looks like now
If I may add my $0.02... I've heard a lot of people say that class 10 cards cause instability and you should use class 4. My experience is the opposite. I started out using a class 4 and although I was excited about having CM7 running on my NC, it was painfully slow. Starting apps took forever. Some weren't even usable because they took so long to load, and even after they were loaded they were still extremely slow. I got FC's all the time. I decided to buy a class 10 card off Amazon (I don't even remember the brand) and it was seriously like night and day. Everything runs so much smoother and faster. Some apps are still kind of slow, like Yahoo Mail, and Facebook, but for the most part the experience has been very positive for me.
Hello Ya'all,
First and foremost, I would like to thank the forum and its members for the great supply of information and technology.
Device: HD2 is currently running YukiXDA's Windows Phone 7 ROM
Storage Device: Sandisk 8GB Class 4 MicroSDHC
Issue: I flashed my phone with Windows 7 after formatting the SD card with SD-Card formater for optimal results. The installation went perfect, the SD card was recognized, etc. and everything was working perfectly. I added pictures and music to it, no problems; however, when I put an additional album onto the HD2, the phone started freezing and rebooting quite frequently, with the occasional Storage card error; thus, I assumed (and read) that adding a little more music would patch up the problem. I tried it and to my surprise, the rebooting decreased, but the problem still persists. I know some of ya'all are probably wondering: "Go buy a new SD card," However, this is one of the cards that is known for being compatible quite frequently; thus, I can't be too sure whether I'm just wasting money or not. Any help would be appreciated.
This might sound hilarious; however, after updating to blackseven mango, my phone has not rebooted for the past 6 hours (It is infamous for rebooting every hour or so). I am going to test this out one more night and see what the problem is. I'm sure it is not related to the roms; however, it would restart with every NoDo Rom, but for some reason, it hasn't with this one.
sd card
Its most likely your SD card I personally have never had any problems with restarting and I have the Samsung SD card that came with my us hd2
Guyden2 said:
Hello Ya'all,
First and foremost, I would like to thank the forum and its members for the great supply of information and technology.
Device: HD2 is currently running YukiXDA's Windows Phone 7 ROM
Storage Device: Sandisk 8GB Class 4 MicroSDHC
Issue: I flashed my phone with Windows 7 after formatting the SD card with SD-Card formater for optimal results. The installation went perfect, the SD card was recognized, etc. and everything was working perfectly. I added pictures and music to it, no problems; however, when I put an additional album onto the HD2, the phone started freezing and rebooting quite frequently, with the occasional Storage card error; thus, I assumed (and read) that adding a little more music would patch up the problem. I tried it and to my surprise, the rebooting decreased, but the problem still persists. I know some of ya'all are probably wondering: "Go buy a new SD card," However, this is one of the cards that is known for being compatible quite frequently; thus, I can't be too sure whether I'm just wasting money or not. Any help would be appreciated.
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Click to collapse
the adding of music is the key, ive found that my card has portions that are fine, in fact its super quick and stable, but if i go and install something it will start resetting, if its the same issue as mine then keep dumping 50MB of junk on it until it becomes stable, i honestly do not know why this works unless WP7 is so sensitive to IOPS that even the slightest hicup will make it reset
dazza9075 said:
the adding of music is the key, ive found that my card has portions that are fine, in fact its super quick and stable, but if i go and install something it will start resetting, if its the same issue as mine then keep dumping 50MB of junk on it until it becomes stable, i honestly do not know why this works unless WP7 is so sensitive to IOPS that even the slightest hicup will make it reset
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Hi
I have had problems with alot of reboots, up till 5 per hour and some times when booting it just get stuck on a white og green screen so that i have to pull the battery. But that was untill i found this yesterday, i filled my phone up(from over 10 gb free to only 2gb free) and now it is running sooooo smooth not a reboot yet
So people with random reboots might noth have to by a new sd card. ???
Wish i found this before i ordered a 16 GB class 10 hehehe
Just a quick report back on this, after filling my sd card up with music i only had ONE reboot last night in stead of rebooting many times per day else it has been running all smoth.
So i must say this is a great result by just adding music to the phone
HTC HD2 with cm7 hyperdroid
Hi my phone randomly reboots a lot ive rooted it and flashed cm7 hyper droid- v10.4 "estatic eagle" android version 2.3.3 build #GRI40 a long time ago but now recently it just started randomly rebooting. i believe it started when i tried to update the rom from rom manager to a newer cm7 hyperdroid but for some odd reason my phone also doesnt reboot into recovery mode to put a new rom on it. please help. its getting irratating. thank you
i got a Venue Pro from a us ebay seller, originally ATT locked and running nodo 7392. guess i got very unlucky cause my device was freezing after a couple of moves, not just under intense stressing, almost immediate freezing with any usb cable connection, random freezes even in standby.
just once i was able to upgrade the sys to Mango before usb crash, and i still got the same problems.
So i tried replacing the original microsd Sandisk 16Gb class 4 with a LEXAR 32 Gb class 10, and no improvement at all!
then i noticed that the device it s kinda lasting longer before freezing when there s no simcard inserted.But STILL with or without wifi activated hte sys crashes, it s just a matter of time.
ANYone can help at this point?
tks
huntkd80 said:
i got a Venue Pro from a us ebay seller, originally ATT locked and running nodo 7392. guess i got very unlucky cause my device was freezing after a couple of moves, not just under intense stressing, almost immediate freezing with any usb cable connection, random freezes even in standby.
just once i was able to upgrade the sys to Mango before usb crash, and i still got the same problems.
So i tried replacing the original microsd Sandisk 16Gb class 4 with a LEXAR 32 Gb class 10, and no improvement at all!
then i noticed that the device it s kinda lasting longer before freezing when there s no simcard inserted.But STILL with or without wifi activated hte sys crashes, it s just a matter of time.
ANYone can help at this point?
tks
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Click to collapse
At this point, you've done a lot. Have you considered a few resets in a row. You have already tried without the SD card, so leave it out. Also, on setup, don't log in. Let in run without windows live for awhile...no apps, no wifi. Just to if it would work out of box. Consider that you're not trying to get it to work the way you like, but rather just getting it to work period. No login, no apps, no wifi. See if that helps
You've already tried most of what is suggested
tks 4 reply! tried everything u suggested but it didnt get any better,
i even followed all steps shown in the "how to unbrick dvp" , succeded to get running that old 7004 Tmobile rom on it, and....same as before!!random crashes, even with every connecivity disabled, even with no sim, no way to get this dvp working i guess...
Looks like a broken hardware, sorry...
I purchased a 32GB micro SD card for my HD2 after my 16GB card died last week. A sad day indeed, but an ideal time to upgrade
I've read a lot of threads on the forum about some people having issues with 32GB cards, and fake cards. This has prompted me to run H2testw, and also try formatting using SDformatterv3.
HD2testw - Verified as OK.
SDformatterv3 - Completes OK.
Now, when I add the newly formatted card to my phone, it mounts, and works fine. No problems at all. I then start to fill up the card with music. I firstly copied about 5GB to the card, and again I had no problems. The card works fine in the phone. I then copied another 10GB to the card. However now I have a problem. With the SD card in the phone, the phone hangs. When the phone is in standby, I press the power button and I get a black screen. If I remove the SD card then it starts to work correctly again.
So, my first thought was, duff card. So, running the programs above verified that the card is OK.
So, I am now wondering if the phone actually supports 32GB correctly (IE, when more than 16GB of data is on the card). I also thought that perhaps the ROM I am using is the problem.
I am running [CWR] BOYPPC-SHIFTPDA_GINGER 2.3.4-Sense.s V25 (24.May) ROM. I see that V35 is the most up to date rom, so perhaps I will need to reflash my phone. I will be testing this later today.
Has anybody else found themselves in a similar scenario, and did you find a solution?
Cheers,
I figured it out. Turns out to be a combination of things.
1) MIUI player locking up when trying to scan newly added music
2) Locking up because of some corrupt files
Tracking down the bad files resovled the problem
Noodleman said:
I figured it out. Turns out to be a combination of things.
1) MIUI player locking up when trying to scan newly added music
2) Locking up because of some corrupt files
Tracking down the bad files resovled the problem
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good to see you solved it, cuz i have a 32 gb class 6 and no problem.
some to notice its that to some ppl a 32 gb class 10 works with some bugs, a class 4 or 6 seems to works better.
PS: if you are a flashaholic like me, you should have partition your sd card with CWM partition option, so you could use some of the beneffits of sd/ext that some ROMs use
So 32 Gb works well with Htc Hd2. But, it depends which company and speed.
msmkt said:
So 32 Gb works well with Htc Hd2. But, it depends which company and speed.
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Yuupp, pretty much it is
Sent from my Nexus One using xda premium
I got a sandisk class 4 32gb card and seems to work well with android and windows phone 7 its part number is SDSDQM-032G-B35
32GB on HD2 issues
msmkt said:
So 32 Gb works well with Htc Hd2. But, it depends which company and speed.
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That's the thing: I bought brand new 32 GB SanDisk and am using MIUI JB. Constantly upgrading with their daily build to new versions to no avail.
Problem: I filled card with my files to listen. Initially it works alright, after some time however I find some folders are gone, some files are gone, things just dissapear from the card.
Now I wonder is it a card, is it a MIUI JB or is it HD2 that got broken after my intensive use. Some electronics burnt down or something.
Does anybody had this issues : combination of HD2 with MIUI JB on 32GB card (NAND or SD - both). Keeps losing files in very consistent manner.
I also checked the card with different software and formatted it many times and re partitioned.
As an experiment I am trying now old 8GB card to make sure if its card or not.