2 identical T989 motherboards - T-Mobile Samsung Galaxy S II SGH-T989

I have 2 identical samsung galaxy S2's both with t-mobile, serial numbers are about 50 apart. I replaced the lcd/digitizer on one of em and switched motherboards a couple times (to update and try rooting/rom-ing em) and both boards have worked fine for weeks, now all of a sudden one of em act's like it did before replacing the screen. It powers on and functions but screen is black, if I switch boards, the screen works fine, switch em back then black screen. What's goin on? Any thoughts or suggestions? Or questions for more info, if needed.
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Double check all the connections make sure there properly connected
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Oh belive me, I've double checked every connection. I know the lcd/digitizer is fine cause it works great with one of the boards, but the other board is like as if the lcd is broken but digitizer still working. They've both worked before.
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Bump, cause im still trying to figure this out. Please help.
Sent from my SGH-T989 using xda app-developers app

Related

Request Dev help broke power button

My phone was bought off Craigslist and I can't afford a new phone my hardware power button got conductive oil inside of it now whenever pressed it acts like. Held and hard restarts, I found an app called any unlock or something like that on the market my problem is when my phone sleeps it kills the process and I cant wake it is there a Dev who can help me make this program start in foreground I read about it but am clueless so I could really use help also if anyone knows where I can order the hardware button part that would be killer cause I could pay a shop to do the circuit soldering, I use this as my work phone and am worried I as I need to invest 500 into tools for work this month and can't afford repair, also my phone is on boost so there is no warranty, I can not take it to sprint, thank you
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If you use CM9 you can set the volume buttons to wake the phone up. Could be a temporary fix for your problem.
Sent from my SPH-D710 using XDA
That sounds good but with it is now I'm not sure I can get it into download or recovery, I can't remember the buttons off the top of my head, but if I can that sounds like a good temp solution, thanks ... do you know if there is a one click Odin for that and if I can just flash it over stock rooted el29 also if its ice based apn settings are an issue for me I need to be able to change them to boost mobiles, I contacted a store that does button soldering and replacement so I may give that a shot on Friday
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Have you tried this app yet?
https://play.google.com/store/apps/details?id=net.maicas.android.wsleep
Sent from my Sprint Galaxy Nexus CDMA using xda premium
So far that is working, I think the screen off in the notification bar keeps the system from killing it, thanks
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Digglez said:
So far that is working, I think the screen off in the notification bar keeps the system from killing it, thanks
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Good deal. Hope you get it worked out!
Sent from my Sprint Galaxy Nexus CDMA using xda premium
Yep I found a place that will replace the button for me, I'm thinking about ordering a custom back since I gotta take it apart anyways
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S2 random menu popup??

No matter what I do what ROM my menu pops up
Is this a fixable or known issue
I've owned 3 s2 epic touches none did this
Any fixes
Currently on 4.1.1 paranoid android
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It is a hardware issue. Get it replaced. Nothing can be done about it. Low signal triggers that. And read before posting.. there is a thread just below yours about it.
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Fixed had sprint mod out a LCD Cleaning / replacement they also mentioned 9/10 u can clean the debris under that area fixes it !
for future reference
no problems since
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What debris could possibly be inside a brand new phone? Many have had this issue fresh out of the box
xkmacx86 said:
What debris could possibly be inside a brand new phone? Many have had this issue fresh out of the box
Click to expand...
Click to collapse
Who knows? It fixed the issue.:thumbup:
Sent from my SPH-D710 using xda app-developers app
Oh thank you!! I thought I was the only one. LoL!! So try doing some cleaning? I guess I can get a replacement. No matter what ROM I use, my battery dies in lyk 1 hour of straight usage. Lyk Battery Monitor Widget tells me I'm using 2000mA. =.S
Anyways, that's off topic. So glad I stumbled upon this. LoL!!
Ive had my phone apart twice now cleaning/wiping. This fixes things temporarily but both times has come back with a short time

I think CM 10.1 killed my GS-III

Since December I've been running CM10 on my GS-III with little to no issues. I flash CM 10.1 mid January and even though it was an unstable nightly it was very stable.
Flashing the nightlies as they became available with no issues at all.
Then today my phone starts slowing down and froze up.
Keep in mind that I hadn't flashed a nightly in like a day or 2 do I had been using the past nightly as a daily driver.
When my phone decided to freeze I rebooted it and it booted just fine.
About 2 minutes in the screen goes black. Holding the power button it's unresponsive.
Now my phone is completely unresponsive to all button presses. I've tried the 3 button combos for recovery and download mode with no luck. I've even held the buttons for a full minute but nothing is working.
Is my phone dead or is there a possibility of resurrecting it?
Sent from my SGH-T959 using xda premium
Are you positive the battery hasn't died. That would be the first thing I would check. Even if it showed it was charging doesn't mean the battery is good. I'm not trying to be insulting either by asking this. I'm a equipment tech at a large semiconductor company and you wouldn't believe the number of times the fix was as simple as turning a breaker back on when another tech wanted to replace something major. #1 rule of troubleshooting: Is there power. #2 rule: Double check rule #1. Sounds silly, but it is the easiest thing to overlook. Good luck and I hope it's as simple as a battery.
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tmjohnsonfse said:
Are you positive the battery hasn't died. That would be the first thing I would check. Even if it showed it was charging doesn't mean the battery is good. I'm not trying to be insulting either by asking this. I'm a equipment tech at a large semiconductor company and you wouldn't believe the number of times the fix was as simple as turning a breaker back on when another tech wanted to replace something major. #1 rule of troubleshooting: Is there power. #2 rule: Double check rule #1. Sounds silly, but it is the easiest thing to overlook. Good luck and I hope it's as simple as a battery.
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Click to expand...
Click to collapse
No you're not insulting by asking that. I use to record music and when something wasn't wasn't working that's the first thing we asked and re asked.
Unfortunately I do believe I checked that out. When I plug in a charger it doesn't even show me a battery charging logo.
I have noticed that when I pull out the battery and connect the charger the led turns red.
I'll see if i can't swap batteries with one of my friends and see if that helps.
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Can adb on your pc detect your phone by any chance ? I do not want to scare you but hopefully your not having a motherboard failure or a sudden death :/
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shahkam said:
Can adb on your pc detect your phone by any chance ? I do not want to scare you but hopefully your not having a motherboard failure or a sudden death :/
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Click to expand...
Click to collapse
I'm checking that right now
Sent from my SGH-T959 using xda premium
Well unfortunately there's no response from adb or phone.
However the computer does make a usb device connected sound.
Not sure if that's just a standard sound from the computer or if the phone is triggering it.
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Did you do the three button combos for the T-Mobile version? They are different from the other s3s. Zedomax's root video shows them, well
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Android_Monsters said:
Did you do the three button combos for the T-Mobile version? They are different from the other s3s. Zedomax's root video shows them, well
Sent from my SGH-T999 using xda premium
Click to expand...
Click to collapse
This.
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Android_Monsters said:
Did you do the three button combos for the T-Mobile version? They are different from the other s3s. Zedomax's root video shows them, well
Sent from my SGH-T999 using xda premium
Click to expand...
Click to collapse
shahkam said:
This.
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Click to collapse
I have tried the 3 button combos for T-Mobiles variant of the GS-III with no luck either.... I even tried making a jig and didn't have much luck....
Next step is to buy a jig and see if that works
Thankfully I got a replacement GS-III from insurance. So I'm content... Also since I get to keep the other GS-III as well it feels even nicer.
Sent from my SGH-T959 using xda premium
ironlood said:
I have tried the 3 button combos for T-Mobiles variant of the GS-III with no luck either.... I even tried making a jig and didn't have much luck....
Next step is to buy a jig and see if that works
Thankfully I got a replacement GS-III from insurance. So I'm content... Also since I get to keep the other GS-III as well it feels even nicer.
Sent from my SGH-T959 using xda premium
Click to expand...
Click to collapse
A usb jig should do it most of the time it do work and if it doesn't oh well you could sell it out for parts i guess ?
Sent from my SGH-T999 using xda premium
You would probably make most of your back if you sold it for spare parts and may only have to pay $50 for a replacement. Good luck!
-------------------------------------
ROM: All-star ROM v7
Kernel: Lighting
Radio: LB7 blaze
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I'm trying to make an app, message if you are willing to help!
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I'm not sure I understand how a jig is going to help him when the phone won't turn on.
I would try another battery first. You said you were going to try this but I don't see where you confirmed that it wasn't the issue.
Hmm you could have ran into that now infamous mb crash and burn error although I'm not sure how since you were running aosp. Anyone else want to chime in?
Sent from my SPH-L710 using Tapatalk 2
If the battery truly died plugging it in won't be any help
Try another battery, I'm betting that's the issue. T-Mobile will have one or two on hand in store so you can try
Hopefully I will be able to get my hands on a spare battery to test this with as soon as I'm off work.
Sent from my SGH-T999 using Tapatalk 2
Yeah first of lets make sure its not the battery and the jig forces the phone to boot into download mode if im not mistaken.. It is intended for users having similar issues / unresponsive devices...
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shahkam said:
Yeah first of lets make sure its not the battery and the jig forces the phone to boot into download mode if im not mistaken.. It is intended for users having similar issues / unresponsive devices...
Sent from my SGH-T999 using xda premium
Click to expand...
Click to collapse
Well unfortunately the spare battery i used on my phone was no good in getting the phone to respond.
Now my next step is to attempt to hope that the jig will do something for my phone.
If not i guess that i will have a nice paper weight of luxury lol
Either that or i can sell it to someone.
So far those are the only options that i think i have at the moment.
Sent from my SGH-T999 using Tapatalk 2
Flash STOCK or different ROM (Don't forget kernel too) think the issue is with the Cyanogenmod, mine did something similar, when screen went dark it took literally 5-10 Power button presses to wake the phone up, sometimes it wouldn't respond, other soft keys only would light up, Make backup, Wipe, install, check everything, that what I would do
Shayd93 said:
Flash STOCK or different ROM (Don't forget kernel too) think the issue is with the Cyanogenmod, mine did something similar, when screen went dark it took literally 5-10 Power button presses to wake the phone up, sometimes it wouldn't respond, other soft keys only would light up, Make backup, Wipe, install, check everything, that what I would do
Click to expand...
Click to collapse
He cannot flash anything his phone doesn't answer to anything i don't see how he could do that..
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The phone is dead. My friend's gs3 died suddenly one day while I just happen to be using it. I plugged in an otg plug and few minutes later the screen just went black. I was sure it was dead when I plug in a charger and there was no sign of life from the phone.
I don't know if you have to pay a deductible but Samsung is supposedly replacing galaxy s3 for free because there is a known defect which cause the motherboard to go bad. My friend's was a Verizon model and they just replaced it free.
Sent from my SGH-T999 using Tapatalk 2

Mic problem

So my note 2 mic is not working . Only speakerphone and bluetooth work. My question is is the mic easy to replace? Is it part of the motherboard or seperate? If its seperate anyone have a broken note 2 willing to sell? Is it weird that speakerphone works and not regular method of talking on a phone? Any help would be great. And by the way no voice apps work either ie google svoice etc. Thanks
Sent from my SAMSUNG-SGH-I317 using xda app-developers app
Try going back to complete stock rom. If you are on custom rom.
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J2DAe said:
So my note 2 mic is not working . Only speakerphone and bluetooth work. My question is is the mic easy to replace? Is it part of the motherboard or seperate? If its seperate anyone have a broken note 2 willing to sell? Is it weird that speakerphone works and not regular method of talking on a phone? Any help would be great. And by the way no voice apps work either ie google svoice etc. Thanks
Sent from my SAMSUNG-SGH-I317 using xda app-developers app
Click to expand...
Click to collapse
What's funny is that if the speaker phone is working. Then in theory the Mic should b good. Because it uses the same one! I agree with the above poster, if your running a custom Rom I would go back to stock to see if that fixes your problem. Another thing I would look at is if the Mic, is clogged up with lint/dust. It happen to my brother's daughter phone. Called me saying her phone don't work, can't here her talking!! Cuz I'm the tech guy of the family, told her to try and clean out her Mic. After that she called her dad now he can here her fine.
Just my 2ยข
Sent from my SAMSUNG-SGH-I317 using Xparent SkyBlue Tapatalk 2
Thanks for your help. I am on stock rom. Already faxtory reset. And tried to clean the mic hole. I'm out of ideas and don't want to take this phone apart. I use the bluetooth but it's driving me crazy.
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J2DAe said:
Thanks for your help. I am on stock rom. Already faxtory reset. And tried to clean the mic hole. I'm out of ideas and don't want to take this phone apart. I use the bluetooth but it's driving me crazy.
Sent from my SAMSUNG-SGH-I317 using xda app-developers app
Click to expand...
Click to collapse
Call Samsung or at&t to get a new phone
Sent from my SAMSUNG-SGH-I317 using Tapatalk 2
Called Samsung they said it's easy to replace and it's only 25 bucks free shipping. Problem solved hopefully. Thanks for all the help. Im goong to attempt to do this muself
Sent from my SAMSUNG-SGH-I317 using xda app-developers app
Isn't your phone still under manufacturer warranty? Why would you pay or do this yourself?
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J2DAe said:
Called Samsung they said it's easy to replace and it's only 25 bucks free shipping. Problem solved hopefully. Thanks for all the help. Im goong to attempt to do this muself
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Click to expand...
Click to collapse
Why would you pay for a Samsung defect
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I forgot to mention I bought this phone used and have no paperwork . So I cant do warranty I dont think.
I bought it from cl and it worked fine for a few days . Before you say I got ripped off I only paid 100 cash + a galaxy s1. So even with the 25 $ mic still came out clean . Phoneis mint except non working mic .
Sent from my SAMSUNG-SGH-I317 using xda app-developers app
I work for a cell phone retailer as a repair technician and warranty repair is free lol. I can see any manufacturer charging for shipping though, unless you complain enough. The warranty follows the device not the phone number
Well after over a month I finally got my note 2 back. .. They sent it back to me broken so I sent it back and finally got it yesterday. They replaced the pba which is the mother board ... It works great and glad to be back
sent from my keyboard
Sorry to revive this thread, but I'm having the same issue. Completely stock, mic works with speakerphone and obviously bluetooth, but not on normal calls.
Thoughts?

Bluetooth problems

I have problems with my bluetooth headphones. It will connect and I can hear music for about 1 minute then it stops, my phone becomes unresponsive then it will usually reboot but get stuck. I usually have to pull the battery to restart.
I'm curious if there is something that I have flashed in the past to cause this.
The headphones work fine on my wifes 4g touch and my galaxy tablet as well.
I've even unrooted and went back to stock but still no luck.
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Michael61182 said:
I have problems with my bluetooth headphones. It will connect and I can hear music for about 1 minute then it stops, my phone becomes unresponsive then it will usually reboot but get stuck. I usually have to pull the battery to restart.
I'm curious if there is something that I have flashed in the past to cause this.
The headphones work fine on my wifes 4g touch and my galaxy tablet as well.
I've even unrooted and went back to stock but still no luck.
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Click to expand...
Click to collapse
Make sure all the screws in the back of the phone are very tight. If one is loose you may have a bad antenna connection.
I checked all the screws, they are all tight.
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I'm wondering if I were to switch the motherboard out with a phone that has a bad ESN will that affect this phone?
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The ESN follows the board unless you were to do that which we do not talk about on this board...
Hint
Hint.
Interesting, I didnt have that in mind, but may be worth a try. I saw some cheap S2's on ebay with bad ESN's. I'm just interested in getting my bluetooth working. I removed my motherboard last night just to see if I could see anything work visually. I already sent my phone to Samsung but they said it was OOW for having a cracked screen. The wanted to charge $160 to fix it.
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Michael61182 said:
Interesting, I didnt have that in mind, but may be worth a try. I saw some cheap S2's on ebay with bad ESN's. I'm just interested in getting my bluetooth working. I removed my motherboard last night just to see if I could see anything work visually. I already sent my phone to Samsung but they said it was OOW for having a cracked screen. The wanted to charge $160 to fix it.
Sent from my SPH-D710 using xda app-developers app
Click to expand...
Click to collapse
You can get used E4GTs all day long for under $100 in good condition on Craigslist where I am. I usually see them running $50-$75, but I paid $30 for the last one I bought.
I would suggest buying a new one, and selling the defective one on eBay for parts. If the shell is in fair condition someone will buy it.
The other option, if you are not under contract, is to consider an upgrade to the s4. I have seen some $0-$50 prices so far this holiday season.

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