U8800+ mainboard into a U8800, will it work? - Huawei Ideos X5 U8800

My U8800 has some serious problems after using the "resize your data partition" and then using the return to stock option. The MBR got messed up, thought I fixed it, installed some roms, roms kept crashing, then would go into a boot loop, and now I can't can't get any roms to boot past the huawei logo or recovery to load.
So I'm replacing the main board. I found some U8800+ boards and everything on them looks the same (connectors and size and such) I know the CPU is different and thus will require different roms. I also believe the SD card slot is different on the U8800+, but I have my old U8800 sd card module, so it will fit in my case. Where there any other changes like screen and such? I want to put the U8800+ board in my U8800 phone, and as far as I can tell it will fit and should work.
Does anyone know something that I don't or that can help me with this?

typci said:
My U8800 has some serious problems after using the "resize your data partition" and then using the return to stock option. The MBR got messed up, thought I fixed it, installed some roms, roms kept crashing, then would go into a boot loop, and now I can't can't get any roms to boot past the huawei logo or recovery to load.
So I'm replacing the main board. I found some U8800+ boards and everything on them looks the same (connectors and size and such) I know the CPU is different and thus will require different roms. I also believe the SD card slot is different on the U8800+, but I have my old U8800 sd card module, so it will fit in my case. Where there any other changes like screen and such? I want to put the U8800+ board in my U8800 phone, and as far as I can tell it will fit and should work.
Does anyone know something that I don't or that can help me with this?
Click to expand...
Click to collapse
But more important, will it blend? lol
Now seriously, I don't think that you will be getting somewhere with that hack, two different phones in H/W.

Actually I have some preliminary evidence to the contrary.  I've seen some phones for sale on taobao which were originally U8800, but they swapped in a U8800+ motherboard.
If my understanding is correct, the only hardware changes were done to the motherboard. The LCD, digitizer, case, and other such stuff are the same. Since everything else is the same, the drivers will be the same. So in theory it will work.
I've run into a problem though. I can't find a motherboard at a decent price. Best I can do is 500 RMB ($78). I can buy a used U8800 for a little more than that. For 1550 RMB ($244) I can get a HTC Sensation XE, which is what I've done. I can get a motherboard for under 300 RMB ($45), then I'll fix mine.

Hi
Did you find any cheap motherboard? I need it one too.
Thank you

main board replacmaent
----

Related

Phone lose calibration

I have a big problem with my touch HD that used to work perfectly. I recently flashed with the most recent NRG rom (4 sep) and also tried after the flashing the new android 2.2 (1.6)..
The phone worked perfectly for a number of reboots and so on.... But suddenly something started to happen.. In WM i pressed the button save screen calibration to SD card (a feature part of the NRG rom)... then the screen calibration went bezerk... The screen is algin 1,5 cm wrong... I have realigned my screen and everything works perfectly for a couple of hours, sometimes just minutes, then once more the screen gets f***ed up... I have cleared my rom (so no traces of the screen calibration file) but still the same problem..
Tried to hard reset the NRG rom, still problems...
Installed stock rom, still same problem (algiment gets messed up after a while)...
I'm running on stock SPL.. anyone else with the same problem.. is it android that messed up my phone or the NRG rom?
Is it fixable (maybe using task 29)?....
i have the some problem ...i dont know how to fix ...
Got the same problem, task 29 do not help.
since task 29 wipes your device, there are only few things untouched:
1. the sd card's content (in other words android)
2. the radio rom
3. the hardware
the exact moment it happened points away from a hardware issue, so i guess in your place, i would format the sd card first. use fat32, standard allocation size and slow format.
Chef_Tony said:
since task 29 wipes your device, there are only few things untouched:
1. the sd card's content (in other words android)
2. the radio rom
3. the hardware
the exact moment it happened points away from a hardware issue, so i guess in your place, i would format the sd card first. use fat32, standard allocation size and slow format.
Click to expand...
Click to collapse
1. Pulling out sd card don't help.
2. Tried 3 or 4 different radio rom's.
I also have this "Newton's Rings"
forum.xda-developers.com/showthread.php?t=779206
So i think this is hardware.
I also have the same problem, but it is a little different for me. Some times it works perfectly (perfect calibration etc.), other times it is not calibrated well and even sometimes the touch screen doesn't react at all. I also haven't dropped it or anything so I don't think it is hardware problem I would like to know if it is hardware what should I change on the HTC - the LCD display or the digitizer or both maybe? Please help me. BTW I had also installed android on my phone and maybe that could have caused the problem? Thanks in advance.
hi
I got same problem from 2 weeks. I've changed rom but it doesn't help. Sometimes it is ok, sometime it's moved 0.5 cm, once it doesn't work at all for 2h. Now it's moved for 2-3 cm.
Is there any solution for that? Or I need to change screen (lcd+dig)?
I notice as well that when it's getting wormer (by using satnav for example) the screen stops working at all. When it gets colder it's coming back to normal (almost, still moved about 2mm). I think, I'll buy new lcd+dig, no ideas what different could help for that problem.
All the symptoms above, IME are malfunctioning digitizers. I've replaced my own, and some for other people too.
The fault seems to show itself when the device gets warm, or the chassis gets stressed, but more often it's just random failures.
They are a cheap repair, and if you're VERY careful, can be replaced without replacing the LCD by using gradual warming and acetone on a thin, sharp blade to break the bond between the digitizer and LCD.

Weird problems

So I've had my T-mobile HD2 for about 2 months now and for the past month or so it's been showing some very weird problems.
The thing is, it sometimes gets stuck (android and stock wm6.5) and the only way to get it working is to remove the battery for about 5 minutes after which it'll just boot and maybe get stuck at GO GO GO (magldr) or if I am lucky it'll load right into Android and then get stuck on the lockscreen.
The problem does seem to be less intensive on wm6.5 (not certain though). I didn't have much usage on WP7 as I don't have a compatible sd card (16gb sandisk)
When it's 'stuck' it sometimes begins to warm up as well. There have been a couple times where it just rebooted and then vibrated 3-5 times.
To my record I have never dropped the phone and there is no water damage either.
I suspect the SIM, as it does seem to exacerbate when the sim is inside, or maybe the NAND storage is corrupt.. can that happen if i used task29 too many times?
Radio: 2.15.50.14 (2.12 seems to be slightly more stable)
HSPL 2.08
MAGLDR 1.13
Tried many different Android builds (non-sense are slightly more stable) NAND and SD builds.. although SD cards don't have these problems as much
Please help.
sending it back for warranty isn't an option as I am not in the US at the moment, so whatever fix there is I'll have to bear the cost.
hayyaan said:
So I've had my T-mobile HD2 for about 2 months now and for the past month or so it's been showing some very weird problems.
The thing is, it sometimes gets stuck (android and stock wm6.5) and the only way to get it working is to remove the battery for about 5 minutes after which it'll just boot and maybe get stuck at GO GO GO (magldr) or if I am lucky it'll load right into Android and then get stuck on the lockscreen.
The problem does seem to be less intensive on wm6.5 (not certain though). I didn't have much usage on WP7 as I don't have a compatible sd card (16gb sandisk)
When it's 'stuck' it sometimes begins to warm up as well. There have been a couple times where it just rebooted and then vibrated 3-5 times.
To my record I have never dropped the phone and there is no water damage either.
I suspect the SIM, as it does seem to exacerbate when the sim is inside, or maybe the NAND storage is corrupt.. can that happen if i used task29 too many times?
Radio: 2.15.50.14 (2.12 seems to be slightly more stable)
HSPL 2.08
MAGLDR 1.13
Tried many different Android builds (non-sense are slightly more stable) NAND and SD builds.. although SD cards don't have these problems as much
Please help.
sending it back for warranty isn't an option as I am not in the US at the moment, so whatever fix there is I'll have to bear the cost.
Click to expand...
Click to collapse
Sorry to have to say, but it sounds like a heat issue, which means the motherboard is failing. Have you tried a hard reset?
What exactly do you mean by hard reset?
I've put it to stock, yes.
any idea where I can get a motherboard? shipped internationally? approximate cost?
hayyaan said:
What exactly do you mean by hard reset?
I've put it to stock, yes.
any idea where I can get a motherboard? shipped internationally? approximate cost?
Click to expand...
Click to collapse
Hard reset, turn phone off, hold volume buttons up and down and keep holding them and press power button and a screen will come up asking you if you wanna hard rest the device, just follow instructions, and motherboard, HTC as far as I no, and thats about it unless you buy another phone that is for spares and repairs mate,
hayyaan said:
What exactly do you mean by hard reset?
I've put it to stock, yes.
any idea where I can get a motherboard? shipped internationally? approximate cost?
Click to expand...
Click to collapse
You are having a thermal break down issue. Go to the li.k below and eaxthis thread it is very informative, the 3 vibrations are a warning from your HD2 that it is having a CPU issue, read the thread it will explain.
http://forum.xda-developers.com/showthread.php?t=982454
You can go to eBay and find main boards for the HD2 or you can buy one directly from HTC. I advice not o buy a HD2 that is broken and being sold for parts as you need the main board and usually the main board is shot in the phones being sold for parts and even one that has a faulty USB port is no good for you as the USB port is part of the main board, although if you are skilled you can fix it, like I said though you have to be skilled. Now if you can find one that just has a badly cracked Efren or faulty digitizer then you would be able to use the main board but anyway you go you are taking a chance to buy a broken HD2 for parts as you never know if the seller is owing about why the phone does not work. Not to mention you might get a HD2 that is bricked and you would have to use a JTAG on the main board to make it usable. I would buy a new replacement main board from eBay or straight from HTC.
About how long does it take to have heat issues? If you leave it on constantly, this will lead to a faster break down right?
also, do check the battery pins...they might be misaligned. misaligned battery pins are known to cause sporadic reboots and instabilities.
hayyaan said:
I suspect the SIM, as it does seem to exacerbate when the sim is inside, or maybe the NAND storage is corrupt.. can that happen if i used task29 too many times?
Radio: 2.15.50.14 (2.12 seems to be slightly more stable)
HSPL 2.08
MAGLDR 1.13
Tried many different Android builds (non-sense are slightly more stable) NAND and SD builds.. although SD cards don't have these problems as much
Please help.
sending it back for warranty isn't an option as I am not in the US at the moment, so whatever fix there is I'll have to bear the cost.
Click to expand...
Click to collapse
Hi,
when did you format your SD Card for the last time? The behaviour of your phone sounds IMO like a dysfuntioning SD Card, which might be logical after trying different Android build.
Take your SD card out of your device - insert in, via card holder, into PC - right click in after starting My Computer and choose format SD Card (slow method) - backup you card to PC before formatting. After PC format has ended (which make take a while depending on amount of Gb's, reinsert Card into device and use SD Card formatting tool for format it again and make it ready for device. Reinsert into PC and backup the old data again and reisnsert into device. After that SR device and see if the problem has disappeared.
regards, Kuzibri

[Q]Htc hd 2 stuck on boot.

Hello,
I recently bought a HTC HD 2 Tmobile from ebay .
The phone will not boot up.
When i start up the phone it leads me to the windows start up to the tmobile start up then back to the windows start up and stays there and i cannot do anything except take out the battery.
Any ideas? Thanks in advance.
Sounds like you are stuck in a boot loop. There is a few things you can try.
First check the battery pins and make sure you do not have any that are bent out of alignment with the others or that is being hindered in anyway.
Next you can download the official Windows Mobile ROM from T-Mobile. You will have to enter the IMEI number, look under the battery for it. Once downloaded you can try to flash it via USB. Just put your HD2 into the bootloader by holding down the volume down button while powering on your HD2 and then connect it to your computer via USB cable. You will have to have Windows Mobile Device Center or Active Sync installed on your computer so you can get the USB Sync connection you need. Go to here to find a link to both, just choose the one you need for the type of windows you use. Anyway once you have your HD2 in bootloader and connected the serial in the bottom white bar of bootloader should change to USB, this means you have the USB Sync connection. When you see the USB you can right click on the ROM you downloaded from T-Mobile and run it as administrator. I do suggest you let your HD2 stay off and charge for a little while first though to make sure you have more than a 50% charge.
If that does not work you can try running a Task 29 and then repeating the above mentioned steps to flash the ROM again.
If this does not fix your problem you probably have hardware issues causing the boot loop.
Thank you so much for the reply. I will try the things you have listed. Even though i am a bit lost haha. If these steps dont work , what are some of the hardware issues that may be the cause of this? And i know this is random but can you help me load android onto my hd2? I have 2 2gb micro sd cards do i have to get a bigger card? Which android os would you recommend? Thats quick and smooth? Thx!
H0n3yb43 said:
Thank you so much for the reply. I will try the things you have listed. Even though i am a bit lost haha. If these steps dont work , what are some of the hardware issues that may be the cause of this? And i know this is random but can you help me load android onto my hd2? I have 2 2gb micro sd cards do i have to get a bigger card? Which android os would you recommend? Thats quick and smooth? Thx!
Click to expand...
Click to collapse
the hardware issue would be overheating cpu, have to get a new main board via HTC warranty (if it is not voided due to water damage or dropped).
Android is easy to load. Fast/smooth you want a CyanogenMod7 ROM, you can find versions for SD or versions that you flash on the phone itself. You can either run Windows Mobile 6.5 then laucnch Android from SD (dual-boot), launch Android from SD with no Windows Mobile, launch Android flashed from internal storage, or flash Windows Phone 7 to internal storage and run Android from SD (dual-boot).
The tutorials are all in the HD2 Android forums and HD2 WP7 forums.
initially I would try a hard reset before getting too technical.
hold down volume up and down and switch on. keep holding volume buttons, when prompted press volume up. this will restore to out of he box settings ie remove all previous data on the phone.
G
H0n3yb43 said:
Thank you so much for the reply. I will try the things you have listed. Even though i am a bit lost haha. If these steps dont work , what are some of the hardware issues that may be the cause of this? And i know this is random but can you help me load android onto my hd2? I have 2 2gb micro sd cards do i have to get a bigger card? Which android os would you recommend? Thats quick and smooth? Thx!
Click to expand...
Click to collapse
As far as hardware issues go it is like XDA member orangekid said overheating is the predominant reason that comes to mind. Another thing is degraded prossesor connection or degradated flash/NAND chip connections. All of witch can only be fixed by main board replacement.
Yes I can help you "load" Android onto your HD2, just click the guide link ed in my Sig. I think everything you need to know is there. well except how to run Android fro SD card, hmmm maybe I should add that. Also you can go here for more links to very useful threads in the Android General Stickie Roll up thread.
Again I have to agree with XDA member orangekid, the CyanogenMod7 ROMs are pretty creaking awesome. But I do recomend the Hyperdroid ROM I have linked in my Sig. I have used it for my daily driver for months and the only real problem I have had is the latest update to the ROM the new updated market would not work properly I would have to go to Settings/Applications/Manage Applications. Then find the market selerct it and then select Uninstall Updates. Oh and make sure you do not have the check box checked to aromatic update the market or you will have to do this everytime you use the market. I am currently testing the [17 Aug][SENSE3.0] Pyramid HTC WWE 1.35.401.1 - Real 3D [V2.1][RAF 1.9GB] ROM to sort of test the HTC Sensation's ROM and to check out HTC Sense 3.0.
As for your 2gig SD card no it will work but I do recomend you consider getting a 4 gig SD card. I have heard mixed results from 2 gig SD cards that people use to dual boot with. I personally have never used under a 4 gig SD card and have never had any trouble.
Thank you all for your replies.
I will Try out all the steps to fix my phone first. then i will try to load up android onto it and i will get back to you guys. i thanked all that have helped thank you so much. i will be back around sunday or monday with an update. wish me luck! oh one more question. would a 8gb be a good size micro sd card? or should i get a 16gb?
It really depends on how much space you'll think you'll need like, are you a person who takes a lot of pics or video, do you keep a lot of music on your phone? If you do then yes I would go with an 8gb. If not then you could really just use a 4gb sd card. I use a 8gb class 10 sd card myself and store a lot of pics, roms and backups and I haven't had the need to go back to a 16gb. Also you dont have to get a high speed card either, a class 4-6 is plenty.
If you decide to go the dual boot for Android I would look up a program found here on XDA called Rundroid. It will allow you to run many different Android builds from your sd card and is very simple to use. I would give the link but I'm not by a computer right now, sorry about that.
Sent from my Desire HD using XDA App
Hiii just an update . i did try to hard reset and it does reset but after i reset when it reboots it stays on the tmobile stick together logo.
and i just noticed if i leave it on like this and leave the battery the phone starts to get warm a bit on the back bottom side of the phone.
i will try the steps you gave me and see if it works. thanks.
I tried to restore by volume down+up and power and it reset but no boot. Pleasse help any one. i tried to do the bootloader ( my computer doesnt reconize my phone) it shows me all these codes. any help?
Heres a vid of my phone if it helps.
http://www.youtube.com/watch?v=a2qQsSXPx-s
I dont want to comment on something and be wrong so with that I would take it to t-mobile and see if you can have it switched out under your warranty. I had a very similiar problem that it was stuck on the HTC/T-mobile splash screen and I sent mine in for repair through HTC. They fixed the issue and sent it back (for free), all I had to pay was shipping there. They do say that if they find something thats not covered under warranty like water damage/not the proper software they'll call and let you know if there will be a charge to fix it.
I will say that my bootloader and probabaly everyone elses dont look like yours. Just above the spl-2.08 mine says pb81120..also mine says Cotullahspl where yours does not. If you dont find what your looking for here on the site best bet is to send it in for repair. Even if T-mobile says you didn't buy the warranty or what ever you still may be covered through HTC. This also will apply even if you bought the phone used.
HTC repair can be found here.
were you not holding the volume down button when you turned on the phone?
I would just download/flash stock from that bootloader screen.
I was holdin the vol down and power and i bought it on ebay so.. idk if i have warenty.
Even if you bought the phone on ebay you still could have a warranty. In post 12 I linked HTC repair. If you call them you could find out if you do have a warranty on it or not. They'll ask if for the imei# and run it. Im not sure if its a two year or one year on the warranty but they'll be able to tell you that.
I bought a used HD2 on ebay as well. Mine was listed as broke and was stuck on the T-mobile splash screen. I asked for the imei# from the seller and then called HTC to find out if it still had a warranty which it did, so i bought it. I lucked out that my phone was covered under warranty, you may or may not have the same luck as i had.
Thank i did what you told me and they gave me a new motherboard on mine. Thanks alot

[HELP!] Rescue this baby! Challenge Accepted!

Ok guys, I need your help. I picked up a T-Mobile HD2 from a friend for $40 who said "it won't boot". Being the experience Android user that I am I decided to give it a try, but I am at my wits end. Here is the sitch:
1. The phone is stuck at the "Stick Together" screen.
2. The bootload WORKS, to a point. It sometimes give a black screen when connected to the computer and a flashing tool is polling the USB.
3. I can flash all different WinMO roms from the bootloader, even HSPL, but still no boot.
4. Sometimes, when the ROM and SPL info come up in the bottom left, the phone will chug at the boot logo for a second, then strange graphical glitches start to appear on the screen. Similar to flashing an i9100 kernel on captivate, but not exactly.
This phone is a hackers dream, or more specifically my dream phone. Please help me get it back to working. I am not stingy; if there person who can get this to work and has a donation link... well... you know.
I have already:
Flashed the ship rom.
Used Task29
Flashed the current TMO rom.
Installed MAGLDR -> bootloader cannot make it to MAGLDR, even holding button.
EDIT: I also can't get it to recognize or flash roms from the SD card. All I have is a 4GB SDHC.
i can't figure out for sure if it's hardware or software that's been failing you. Since i'm more experienced with hardware i'll try to figure out a cause should the problem turn out to be hardware based after all.
1. nand memory corruption. the nand memory is made out of individual memory blocks, linked in a matrix mode and controlled by a memory ...controller (pretty logical i guess ). NAND memory is organized at a logical level in a way very similar to the classical electromagnetic drives (normal hdd's). I mean, blocks, sectors etc. If a memory sector gets damaged, it will produce something called a "bad" memory block. Again, similar to HDD's. But, different to HDD's where you can remap the memory regions and isolate bad blocks, you cannot do this to a flash chip inside a phone. At least not using standard tools or software. These tests are made only once by the manufacturer when the motherboard itself is being build. So, if your nand memory get's corrupted the phone itself won't "know" it since the individual damaged blocks can't be "marked" as damaged for the software to see and avoid placing data over there.
What happens is that you flash a rom, it may complete to 100% and from the bootloader "point of view" data was written over the flash memory. But when you attempt reading data from the damaged sectors, you'll get either nothing or corrupted readings. A more worse situation is when the boadloader itself resides over the damaged memory areas. If this is the case, even bootloader operations will behave erratic - bootloader lock-ups, freezes, strange screens etc.
I've seen phones with similar behavior that will react just like that. Sometime you can flash them, sometime not and when you flash them, they will stick to some random screen or simply freeze since the OS loading process halted with some random error when the corrupted data was read. I only managed to fix this by means of JTAG, a pretty low level debugging tool that requires a direct interface between the cpu and a pc. A memory diagnostic is loaded into the RAM memory and executes from there, it's purpose being to remap the NAND memory. It cannot be done from inside the NAND memory itself just like you cannot simply format the windows drive on a pc, while still being logged in on windows.
But, it's nasty business, service center kind of business.
2. CPU I/O failure. If you look into my signature here on xda, you'll find a link about hd2's cpu and overheating. That problem can in turn cause your problems - also saw this kind of stuff happening to a hd2. In fact is easier to determine if this is the cause. While i won't repeat myself again about how heat cause dilatation in the chip's soldering and how this affects the cpu operations, you can try a simple test. Place a sd card with some rom on it in the phone then place the phone in a bag, then place the bag in the fridge for about an hour. After that (while still keeping the phone in the bag and in the fridge interior) power on the phone, go to the bootloader and try to flash the rom from the sd card. Let the phone in the fridge during flashing and after it restarts. If you can't load a rom from the sd card, try using usb, the ideea is that the phone must remain as cold as possible during the whole process. Check to see if you notice any improvements - phone booting up, different errors or something different in any way from what you noticed so far. If this is the case, that topic from my signature would describe your problem in more detail. If not, we need to look further.
These should be my main suspects. Try to check #2 and reply with some results.
First of all, thank you for the information. I am actually very experienced reflowing PS3 and Xbox 360's, so I will try the refrigerator experiment, and if that succeeds I will disassemble the phone and reflow it in my reflow station. I find (seriously, not joking) that a reflow and (after cooling) a good 10 minutes in the oven on "warm" gets everything nice and settled.
Do you know if they used lead-free solder in the HD2? I'm not sure if phones also fall under RoHS.
yep, i think it's lead free, can't say for sure. But by the way it reacts to heat.. it seems so.
If you try the fridge/freezer, try to get the hd2 as cold as possible while preventing any condensation occurring on it - those transparent zip bags can help, that's what i use for example.
I had the EXACT same problem for a version that I bought off from a NY store (jr.com), it was a t-mobile version, tried everything, just to return it after 8 hours of my purchase.
Looking again for buying another hd2.
EDIT: looking online for hours and hours in vain, I concluded that it was a hardware issue due to some versions of the hd2 as someone explained earlier here.
I reflowed the motherboard and the phone now works.
I think its official, the"Stick Together" screen is the new RROD / YLOD.
good to hear. my hd2 was broken in the same way as yours. fixed it the same way, works as good as new even now.
Well, at least you know what to do if it happens again

[Q] Help fix my 512Leo

Alright, so here's the deal. I came into possession of a Euro HD2 recently. I have been using my personal TMo HD2 for a year or two. The problem with the Euro one I was given is that it refuses to boot past the splash screen. Here's a breakdown of everything I've tried so far to restore it.
The device boots into the bootloader without any problems. I initially loaded HSPL 3.03 onto it. It was originally on SPL 2.08. I've done a task29 on it several times with the RUU and device reporting it as a success. After this, I've also flashed a few radios to make sure the radio partition was fine. When trying to flash a ROM, it will either finish all the way and then boot to the secondary splash, where it stops booting, or it stops the flashing process at 3%.
I'm thinking that the NAND may be corrupted, but I'm not entirely sure. I don't have access to JTAG, so that isn't an option. If I can't fix this one, then it's not a big deal. I'll just scrap it for parts. It would be nice to have a second HD2 to sell or give to a dev, or even to use as a backup.
The bootloader reads as follows
PB81120 HX-B3
SPL-2.08.HSPL 8G XE
0x05
CotullaHSPL 0x30
It will not accept a ROM image via SD. I can see the screen flash to the gray SD loading screen for a split second before it returns to the RGB bootloader. Currently using a 16GB SD card. I'm going to use a 1GB card in a few minutes to check that the size isn't an issue.
SD flash needs 4gb or smaller card
samsamuel said:
SD flash needs 4gb or smaller card
Click to expand...
Click to collapse
Sorry for the late reply. I had to acquire a smaller SD card. I've just used a 1GB microSD card. The update seems to have gone through. It hangs at gray screen where it says UPDATE SUCCESSFUL. I left it there for 10 minutes. On my 1024Leo, it always reboots on its own after this. I had to pull the battery on this one to make it reset. Then it does the same thing as before where it just hangs at the splash screen when I try to boot it normally.
Any other suggestions I might try before ordering a replacement board?
Does it vibrate before it gets stuck and feel hot?
5800xm_user said:
Does it vibrate before it gets stuck and feel hot?
Click to expand...
Click to collapse
It vibrates while powering on, but does not move past the primary splash screen. It does not heat up any noticeable amount.
this might sound crazy/silly but freezer the phone for couple min and see if that will work or freeze it and reinstall the rom. I had that issue with my second HD2 were I HSPL, radio, maglr & flash rom, reboot and would get stuck at splash screen. Searched & searched and found a thread with a member with the same problem I had and resolved it by using ice pack while installing the rom. I gave it a try and it worked for me.
5800xm_user said:
this might sound crazy/silly but freezer the phone for couple min and see if that will work or freeze it and reinstall the rom. I had that issue with my second HD2 were I HSPL, radio, maglr & flash rom, reboot and would get stuck at splash screen. Searched & searched and found a thread with a member with the same problem I had and resolved it by using ice pack while installing the rom. I gave it a try and it worked for me.
Click to expand...
Click to collapse
Hmmm.... That does sound crazy. Lol
So, you mean you put it in the freezer or under an ice pack while flashing or before?
What temperature does the phone have while you flash it? I had an HD2 hat always got stuck flashing. It suffered from freezings due to overheating, and during flashing room temperature was enough to kill it. I put it in the fridge for half an hour and was able to flash it back to stock then(through sd). Got it replaced from my provider.
Sent from my NexusHD2 using XDA App
jacket08 said:
What temperature does the phone have while you flash it? I had an HD2 hat always got stuck flashing. It suffered from freezings due to overheating, and during flashing room temperature was enough to kill it. I put it in Thema fridge for half an hour and was able to flash it back to stock then(through sd). Got it replaced from my provider.
Sent from my NexusHD2 using XDA App
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I guess it couldn't hurt. It's just a spare device for me anyway. I didn't notice any heating up on the device at all during flashing this one.
Upon further inspection, I believe this might actually be a T-Mobile 1024Leo based on the model numbers being the same on both my personal TMo HD2 and this dead one. Someone did replace the screen on it at some point.
i put the phone on top of the ice pack while flashing
5800xm_user said:
i put the phone on top of the ice pack while flashing
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Click to collapse
I don't have an ice pack handy, but I did throw it in the freezer for about 30 minutes. I then took it out and put it on a pack of frozen okra. It's flashing via SD right now. Hopefully it actually boots this time...
You have got to be kidding me.......
It worked....
I honestly cannot believe that this just happened....
the flash worked when chilled = good! that's great news.
the flash worked when chilled = oh no! that's terrible! you (almost certainly) have failing hardware.
Fingers crossed it was a one-off corruption that is now fixed, but if i were you id get some rom working and then stay away from flashing anything.
samsamuel said:
the flash worked when chilled = good! that's great news.
the flash worked when chilled = oh no! that's terrible! you (almost certainly) have failing hardware.
Fingers crossed it was a one-off corruption that is now fixed, but if i were you id get some rom working and then stay away from flashing anything.
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Click to collapse
Well, it's just a backup device. I did confirm that it is the 1024Leo and not the 512 model. I'm going to see if I am able to flash again now. If it hangs again, I might just give it away to someone. We'll see. I might be able to score a TMo unit with a broken screen for cheap and repair this one. Thanks for the help, guys.
Ugh. Back to square one. It is certainly hardware related. I had it sitting next to me plugged in to my laptop. It rebooted to the splash screen again and is now stuck. At least I know how to fix it.
Alright, so I made some time to open this thing up. I found that there was no thermal tape left on the inside above the heatsink for the CPU. I ordered some small extra thermal tape that should arrive in a few days. If it helps at all, I'll update the thread.
I'm not particularly optimistic about this solution, but the alternative is to superheat the CPU to reconnect the disconnected contacts. I'm going for the safer, simpler, and cheaper solution. If this doesn't work, then I will probably just purchase a damaged HD2 and swap the parts.
Here is a link to a similar thread in which they discussed possible solutions to your problem. I hope it helps.
I read that reheating the cpu might work with adding thermal compound to cool it might work. I was gonna do it but i need to buy screen/digitizer first before I open it. Glad it worked out
jacket08 said:
Here is a link to a similar thread in which they discussed possible solutions to your problem. I hope it helps.
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Click to collapse
Yep. I saw that thread last night. I added some thermal paste to the CPU, but didn't notice a change. Reheating the CPU would be the way to fix it. It's kind of along the same lines as the Red Ring of Death on the Xbox 360. The CPU got so hot at one point, that the solder points to the board were terminated. Cooling the board shrinks the spaces, allowing for the contacts to touch again and work until it reheats.
I'm probably just going to get a replacement main board.
5800xm_user said:
I read that reheating the cpu might work with adding thermal compound to cool it might work. I was gonna do it but i need to buy screen/digitizer first before I open it. Glad it worked out
Click to expand...
Click to collapse
Yea, adding thermal compound helps a bit. It lasts about 40-60 minutes longer than without it. It isn't a permanent fix, though. Once it gets this bad, replacing the board is the safest method to do. Cooling it down will give you enough time to backup your data to transfer over to another device or board.

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