Database Develop

[Q] replacing motherboard (will I need to re-root?)

my sprint htc hero needs a new motherboard only because the usb is completely damaged from the outside only. It is rooted. Once the new motherboard is in, will I still have root? what should I expect when I turn the phone on for the first time?
cns

Sent from my HD7 using XDA Windows Phone 7 App

cityneversleepz said:
my sprint htc hero needs a new motherboard only because the usb is completely damaged from the outside only. It is rooted. Once the new motherboard is in, will I still have root? what should I expect when I turn the phone on for the first time?
cns
Click to expand...
Click to collapse
You can replace a motherboard but can't handle root?

replacing the motherbord shouldnt affect the actual software so yes im pretty sure you will still be rooted.
to be honest though i would just get a new phone because i know motheboards arnt cheap.

well, I did get a new phone a while ago. got the evo 4g. but this hero just keeps bugging me, so kind of more for fun, I want to give this a go. I already ordered the motherboard on ebay. 30 bucks plus shipping. I saw a video on youtube and replacing it looks fairly simple. It is going to take a couple of weeks for it to get here, but will post back and let you know how it turns out.

cityneversleepz said:
my sprint htc hero needs a new motherboard only because the usb is completely damaged from the outside only. It is rooted. Once the new motherboard is in, will I still have root? what should I expect when I turn the phone on for the first time?
cns
Click to expand...
Click to collapse
No, you will need to root again. The android software is stored of the motherboard. So putting in a new one will be like getting a new phone, minus new parts on the outside.
If the motherboard you bought is used, then whatever the previous user had on it, then that's what you would find. Hope this helps.
Sent from my DROID3 using XDA App

ha proved me wrong lol. either way rooting shouldnt be a problem just z4 that bad boy and itll be up and running in no time

ah, that makes sense now. well it is a new motherboard. found two sellers on ebay both of which have a small supply for 30 bucks each. okay so I start over once I have it. many thanks

I know it has been a while, but just to finalize, got this hero working like a charm. changing the mother board was the easy part. the trick was finding the right sprint store that would get msl code and make everything match up between the new mother board and the phone. they have to actually change codes in their data base or you will not get service.

Damn, you should have asked -- I have a couple extra heroes from friends who move on.

wow, thanks. You know it was one of those things that you brake and get some redemption when you fix it.
Sent from my PC36100 using XDA App

[Q] [Help] Need to delete data on water damaged SGS9000

So basicly, I dropped my galaxy s 9000 in a drainwater hole next to my house and had to get it out with my shovel. I did so and obviously because it was raining, it got water damaged and also has dirt inside of it.
Since it was in there for around and hour with the battery still in while I tried to get it, Its pretty hopeless to try to fix it or send it to repair, particularly because I'm upgrading to SGS3 in a month or two.
I want to sell it on ebay for spare parts use but I want to first whipe all data off the phone, because it includes many documents like my paypal account history and emails on gmail. The problem is, if I try turning it on, the usual white text "Galaxy S GT-I9000" text shows up and in several seconds turns off. Even if I try booting into recovery mode, I just dont have enough time to hit erase all data.
So is there any way to whipe all the data off of it other than microwaving/purging it?
Thanks

Bump please help guys

I suggest you to put it in straight sunlight with battery taken out
hit thanks if I helped

rocky_99 said:
I suggest you to put it in straight sunlight with battery taken out
hit thanks if I helped
Click to expand...
Click to collapse
I think its way to late for that
Sent from my GT-I9100 using xda premium

EvolutionXIII said:
I think its way to late for that
Sent from my GT-I9100 using xda premium
Click to expand...
Click to collapse
I opened it and its completely corroded already and it would cost far greater than the phones currently worth to fix.
Anyway, as I asked, is there any way to erase all data off of it if it doesn't turn on for more than 5 seconds?

Identify and desolder Flash IC (or IC-s if there are multiple).
No problem if these are TSSOP-s (they usually are) - this can be done with soldering station and soldering braid.
If these are BGA-s then use heat gun and something to pick up the (very hot) IC.
Update: just thought that if you don't have time/tools to make it then there are 2 options:
1) just disassemble the phone, purge motherboard, sell what is left.
2) Find some mobile phone / computer / electronics repair shop where they can remove and destroy these Flash IC-s with you seeing it.

andres_a said:
Identify and desolder Flash IC (or IC-s if there are multiple).
No problem if these are TSSOP-s (they usually are) - this can be done with soldering station and soldering braid.
If these are BGA-s then use heat gun and something to pick up the (very hot) IC.
Update: just thought that if you don't have time/tools to make it then there are 2 options:
1) just disassemble the phone, purge motherboard, sell what is left.
2) Find some mobile phone / computer / electronics repair shop where they can remove and destroy these Flash IC-s with you seeing it.
Click to expand...
Click to collapse
Before I do that though, is there actually any way I can possibly delete all data without destroying the hardware (If it isn't yet destroyed by the waterdamage ofcourse)

I know no way to destroy data in Flash memory without damaging other phone components or without disassembling if device itself is not operational.
Suggestion at the moment is:
* Wait for more feedback from forum members. Clearly there's a lot more experienced members than i here
* Meanwhile try to get phone as dry as possible - it may happen that it boots for longer time e.g. tomorrow

Indeed. Stick it in a bag of rice until you get a better idea
Sent from my GT-I9300 using Tapatalk 2

andres_a said:
I know no way to destroy data in Flash memory without damaging other phone components or without disassembling if device itself is not operational.
Suggestion at the moment is:
* Wait for more feedback from forum members. Clearly there's a lot more experienced members than i here
* Meanwhile try to get phone as dry as possible - it may happen that it boots for longer time e.g. tomorrow
Click to expand...
Click to collapse
I will try doing this. I took the phone to my friend who used to repair mobile phones, and he kindly wiped the components with WD-40 on a toothbrush for free. He says that theres hardly any chance it'll work but it may eventually allow me to boot up for longer than 10 seconds which will be enough time to flash the memory.

Galaxy S amoled screen broken but not the gorilla glass

Hey guys, my old and trusty galaxy S amoled screen shattered somehow, and I do not want to repair the phone as who knows the internal parts might die anytime?
Does anyone know of other uses for such a phone? Or is replacing the screen the only way out to make full use out of it?
It's interesting to see a phone model 2 years old still has so much development going on
Sent from my HTC One X using xda app-developers app

Obscure said:
Hey guys, my old and trusty galaxy S amoled screen shattered somehow, and I do not want to repair the phone as who knows the internal parts might die anytime?
Does anyone know of other uses for such a phone? Or is replacing the screen the only way out to make full use out of it?
It's interesting to see a phone model 2 years old still has so much development going on
Sent from my HTC One X using xda app-developers app
Click to expand...
Click to collapse
If you're handy with things like this, a replacement screen is about $80, which isn't too bad. Pretty big pain to do it though. On the other end of things, if you're half decent with a linux terminal (or willing to learn a bit), ADB will be your best friend here.
EDIT: Also unless you mess something up internally or do something really wrong flashing it, it won't just die on you.

Display Module
Obscure said:
Hey guys, my old and trusty galaxy S amoled screen shattered somehow, and I do not want to repair the phone as who knows the internal parts might die anytime?
Does anyone know of other uses for such a phone? Or is replacing the screen the only way out to make full use out of it?
It's interesting to see a phone model 2 years old still has so much development going on
Sent from my HTC One X using xda app-developers app
Click to expand...
Click to collapse
Had the same problem... i changed the display module for a new one... it's one with the glass so you need to replace the whole display
and believe me ... it's worth it... en really not exspensive!! just google it
and when replaced ...turn on the device en you'll see that NOTHING of data,pics,music etc. is lost...
sorry for my not to good english.

replace it!
Obscure said:
Hey guys, my old and trusty galaxy S amoled screen shattered somehow, and I do not want to repair the phone as who knows the internal parts might die anytime?
Does anyone know of other uses for such a phone? Or is replacing the screen the only way out to make full use out of it?
It's interesting to see a phone model 2 years old still has so much development going on
Sent from my HTC One X using xda app-developers app
Click to expand...
Click to collapse
Hi, I had the same issue few months ago. At that time, I found that you can buy a replacement display on e-bay, but most users claimed it was not an AMOLED display.
Also, in my case, I was not able to connect to the phone by ADB.
For those reasons I then decided to send the phone to the Samsung repair center. The only problem was that they wiped the phone (they did a factory reset). However, I didn't loose any picture I have saved on the phone. The phone is happily working and running CM10 nightlies
regards,
marco

I have a broken touchscreen (still works but is badly scatert)
So can i only replace touchscreen?
So not can i just put a new lcd with touchscreen on it. (I have amoled one is it posible to put lcd on it?) Because i know amoled is a pain to.findd parts.

[Q] new digitizer, still not working!

hey guys, so i have the LG Optimus 2X, P990-HN, i'm with Fido (doubt it matters) anyway, there was a large crack in my screen, and i just dealt with it for a long time, but eventually the glass FELL OUT, the rest of it worked, but i couldn't leave it, so i ordered a new Digitizer from DealExtreme.com and it was about $50 CAD, reviews tell me it worked, googled it nobody else had complaints, so i doubt it's a fake or anything, all the way from singapore, i put it in and i can see everything clearly through it, beautiful, but zero response from the touch screen. none at all in any area, what could it be? also, if i take the screen out to re-seat it do i need to apply heat and completely remove it, and if so will that make it garbage and need a new one? will the heat kill it? i'm quite upset because it costed 50 bucks and took a long time to get here, and i finally put it in and it doesn't work, all help appreciated!

Have you tried the service center ? One probable way to check if the new one really works is to connect the old one back and see if touch works.. You might have accidentally pulled out some other connection .. just my guess
Sent from my LG-P990

vkk178 said:
Have you tried the service center ? One probable way to check if the new one really works is to connect the old one back and see if touch works.. You might have accidentally pulled out some other connection .. just my guess
Sent from my LG-P990
Click to expand...
Click to collapse
if i take off thte new screen with a hair dryer, will that ruin the screen though?

Not sure about that . Is the new screen stuck on to the device like a sticker ? I recall seeing some YouTube videos on Optimus 2x surgery
Sent from my LG-P990

The digitizer , screen and the glass are usually a single unit .. yes any one of them is worn out , it can be replaced ... but u have to find d place where it s done ..
Sent from my GT-I9300 using xda app-developers app

skanda93 said:
The digitizer , screen and the glass are usually a single unit .. yes any one of them is worn out , it can be replaced ... but u have to find d place where it s done ..
Sent from my GT-I9300 using xda app-developers app
Click to expand...
Click to collapse
yes i ordered a digitizer though, replace it and it didnt work, what the hell could it be i just dont understand, and i can do it myself but i don't know the problem

I have done this twice with OK success. It is important to connect all electronics correctly - check YouTube for guides. But even if you did all correct be digitiser might be defect. Either you being it to service centre or redo digitiser install. Maybe, you can check before closing the phone, and if not working correctly check with your old digitiser. Heating and reheating should be no problem (although nothing is without risk). Good luck.
Sent from my LG-P990 using xda app-developers app

oneearleft said:
I have done this twice with OK success. It is important to connect all electronics correctly - check YouTube for guides. But even if you did all correct be digitiser might be defect. Either you being it to service centre or redo digitiser install. Maybe, you can check before closing the phone, and if not working correctly check with your old digitiser. Heating and reheating should be no problem (although nothing is without risk). Good luck.
Sent from my LG-P990 using xda app-developers app
Click to expand...
Click to collapse
hey, thanks for helping me out. i think the digitizer MUST be defective, i took it apart and put the old SHATTERED one in, and it works FINE, aside from you know... being shattered. then i plugged the other NEW one in, and no response from the touchscreen. the ribbon wire looks to be fine, the connection to the logic board was fine, everything was hooked up right (or the other one wouldn't have worked right?) so if i cant SEE anything wrong with a digitizer, what could even be wrong with it, it MUST be defective, but what can really be defective about a digitizer? what can go wrong on something with so little to break...?

Don't know what is wrong, but it must have been defect before you got it. Try to return it to the seller/shop as soon as possible and get your money back.
Sent from my LG-P990 using xda app-developers app

[Q] HTC M7 bricked by ignorance and stupidity - What parts to replace?

Hi, thanks for looking into this thread.
I've used my HTC M7 during wintersports, where it got a little bit wet sometimes. The phone would only charge when turned off, so I put some WD40 on the mini-USB port and it worked fine again. Same problem week later, tried the same solution, but this second time I'd blown WD-40 under the screen..
So I decided to pull out the screen, ended up with the digitizer, and several screen parts in my hands. So I decided to order a whole new front, and a logic board(for USB port) from China, and put the existing parts over in the new front.
I did this yesterday, and tested the phone without putting the back cover back on yet. The phone worked like it had never worked before: awesome speed. I noticed however, that the speaker didn't work. I díd get sound out of my earbuds using my headphone jack, so it had to be the speaker.
I was so glad that the phone worked, as I do not have any knowledge whatsoever about hardware and I just repaired a phone with a 1.0/10 repairability score (iFixit). In my joy I thought that perhaps refixing a connection cable might do the trick. Now the horror: I touched the connection between the battery and the mainboard with a screwdriver, while it was still turned on.. I saw a sparkle, and since then the phone won't start. (And later I found out that the speaker didn't work because there was no pressure on it. When pressing on the phone, like the back cover would do, it would produce sound).
I've tried completely disassembling and reassembling the phone but that didn't work.
All it does is this loop when I hold the power button for 5 seconds:
- Flickering home/return button
Then when I release the power button:
- The phone vibrates once
- Then it keeps making a startup/boot sound (with about 6 seconds intervals) but the screen stays black, untill it has drained all energy from the battery
When I press the power button for a couple of seconds during this loop, it starts at the beginning of the loop again.
What parts in this phone are probably broken? The main board, or the battery? Both? Or possibly more?
I was just an idiot to touch a live circuit with a screwdriver..
Thanks!

japzz said:
so I put some WD40 on the mini-USB port and it worked fine again.
Click to expand...
Click to collapse
Never put oil on electronics! Clean the port using a Electro contact cleaner and once cleaned you can wash it using a contact enhancer" The only time you want to use WD40 on electronics is to remove surface corrosion. Part must then be cleaned of that oil.
Same problem week later, tried the same solution, but this second time I'd blown WD-40 under the screen..
Click to expand...
Click to collapse
Another reason to use electro contact cleaner. This solution evaporates so fast, like 10 times fast than rubbing alcohol. Even if you had blown contact cleaner under the screen, it would have done nothing.
I touched the connection between the battery and the mainboard with a screwdriver, while it was still turned on.. I saw a sparkle, and since then the phone won't start. (And later I found out that the speaker didn't work because there was no pressure on it. When pressing on the phone, like the back cover would do, it would produce sound).
What parts in this phone are probably broken? The main board, or the battery? Both? Or possibly more?
I was just an idiot to touch a live circuit with a screwdriver..
Click to expand...
Click to collapse
Probably the main board. Doesn't worth it imo. You can get a new M7 for like 150-250$ on ebay.

alray said:
Never put oil on electronics! Clean the port using a Electro contact cleaner and once cleaned you can wash it using a contact enhancer" The only time you want to use WD40 on electronics is to remove surface corrosion. Part must then be cleaned of that oil.
Another reason to use electro contact cleaner. This solution evaporates so fast, like 10 times fast than rubbing alcohol. Even if you had blown contact cleaner under the screen, it would have done nothing.
Click to expand...
Click to collapse
Thanks! This is really helpful information for possible fixes of other phones/parts in the future.
alray said:
Probably the main board. Doesn't worth it imo. You can get a new M7 for like 150-250$ on ebay.
Click to expand...
Click to collapse
Thanks for your reply. Indeed, I think I will just buy another product.
But just for the sake of fixing it (not for net present value of the project), I think I will try to buy one with a broken screen or something from the Dutch Craigslist alternative. However, the M7 stores data internally. Where does it store that data? Can I remove a data chip from my (now broken) M7 motherboard, and replace it on a working motherboard?
Thanks! :good:

japzz said:
Thanks! This is really helpful information for possible fixes of other phones/parts in the future.
Thanks for your reply. Indeed, I think I will just buy another model.
But just for the sake of fixing it (not for net present value of the project), I think I will try to buy one with a broken screen or something from the Dutch Craigslist alternative. However, the M7 stores data internally. Where does it store that data? Can I remove a data chip from my (now broken) M7 mainboard, and replace it on a working mainboard?
Thanks! :good:
Click to expand...
Click to collapse
Data is stored on the emmc chip and is not removable. You can not access your data with the phone not booting.
If buying a used phone for parts, make sure it have a clean imei first. Imei # is tied to the motherboard so if you take a motherboard from a blacklisted imei phone and put it in your phone, you won't be able to connect to any carrier network.

alray said:
Data is stored on the emmc chip and is not removable. You can not access your data with the phone not booting.
Click to expand...
Click to collapse
Well that's a bummer.. But thanks for the clear information!
alray said:
If buying a used phone for parts, make sure it have a clean imei first. Imei # is tied to the motherboard so if you take a motherboard from a blacklisted imei phone and put it in your phone, you won't be able to connect to any carrier network.
Click to expand...
Click to collapse
This isn't really clear to me straightaway, but I will like into how I can look this up etc. Great information to start with. Thanks again!

japzz said:
Well that's a bummer.. But thanks for the clear information!
This isn't really clear to me straightaway, but I will like into how I can look this up etc. Great information to start with. Thanks again!
Click to expand...
Click to collapse
The IMEI number is a unique identifier. If a phone is declared lost or stolen or is linked to unpaid bills. its imei will be blacklisted. The blacklist is international and every carriers have access to it. If the phone is blacklisted, all carriers will refuse to active the phone on their network. The IMEI # is stored on the emmc chip so its tied to the motherboard. If you change motherboard of your phone, your IMEI number will change to the new one linked to that motherboard. So before buying a phone to swap motherboard, make sure the IMEI is not blacklisted. Ask the seller first and then you can check if the IMEI is valid. If the seller can't provide the IMEI, don't buy the phone.

alray said:
IMEI Explanation
Click to expand...
Click to collapse
Wow thanks for this comprehensive explanation and practical tip. Thanks for helping me again and again, means a lot to me!