[Q] Conundrum, take phone apart or is there another method? - Sprint Samsung Galaxy S III

My brother recently broke his GS3 (dropped it and cracked the screen and digitizer). I have been looking for a project phone to turn into a remote cell switch to turn on a heater and some other electronics at a storage place not near my house (hence it will be warm when I get there).
The problem is that he didn't have the debugging turned on. After some searching on the forum, I don't think I will be able to root it and restore it since the screen is completely blank. I also own a GS3 that works. I tried connecting the HDMI connector to the broken phone to see if I could get it to display on a television. This did not work.
My question is... is it possible to root his phone and get it going? I am not worried at all about preserving any data on the phone. Or is this impossible because the screen is cracked? Is it easy to disassemble the GS3 and use the working touch screen on my phone to boot his and start the rooting process? I would prefer not to do this since my phone functions properly, but would be willing to try. I watched a couple tear down videos and it doesn't seem overly complicated, I just hate to destroy a working phone.
Let me know your thoughts...
kev

1) First, as it goes goes online.
2) What you propose (switching the boards and hooking up the screen and the other necessary parts is entirely doable.
If you were to do that, you'd need to find a way to eventually replace the phone's broken parts so you don't have to switch boards just to use it as this test device you propose.
Sent from my iPod touch using Tapatalk

Yeah, I have been doing research for awhile now to see if I could do it without taking my good phone apart. However, most of the guides that I found required using ADB and having a phone with debugging turned on. I was trying to find a last ditch effort before I decided to take the phone apart.
I should only have to swap the board once, right? Once the device is rooted, I should be able to connected it to a computer and control it that way?
For a better understanding of the project. I have built a test board with some transistors that accepts a standard headphone jack. Using my phone, I have been able to get a square wave to trip on a standard Christmas light timer that will run for 2/4/6/8 hours before automatically turning off. My plan was to set the phone to silent, and use the configurable ringtones to allow me to create a whitelist of friends that can remotely warm up the garage. I found a BYOD provider (ting) that is a pay as you go service that uses old sprint phones. Since the screen is cracked and cannot be answered, it is a perfect device to sit on a shelf. Thoughts?

Okay. So, I took the phone apart and managed to Frankenstein the two devices together so that I could get a working touchscreen.
I have rooted the phone into cyanogen mod 10.2. Using a tasker function, I am able to get it to activate the media player and trip the activation sound and turn on the pre heater.
I have two more current problems....
1.) I couldn't get the tasker (condi previously MiniTasker) to play the sound based on incoming calls. What is happening is a call from the "whitelist" will cause the phone to reboot. On the reboot, the tasker will cause the media player to open and play the file. Is there another way to do this? The current problem is anything the causes the device to "reboot" will turn the heater on. Again not a big deal since it is on a 2 hour timer.
2.) I couldn't get a screen share program to work. When I was on the stock samsung rom, I was able to get screen share but not screen control. I tried using several different applications (screencast / [email protected]) Does anyone know one that will work well with our phone? Changing the custom rom to a different one is fine (cant see it anyway because the screen is broken/blank). It would be great to see the screen every now and then as a diagnostic tool.
Thanks for the info!

Why not just buy a bad enough from eBay. Then you would have all the parts you need.
Sent from my SPH-L710 using Tapatalk

kaos420 said:
Why not just buy a bad enough from eBay. Then you would have all the parts you need.
Click to expand...
Click to collapse
Do you mean buy a phone that has a working screen?
I don't want to spend a ton of money on this project and once it is complete it is going to spend most of its life plugged into a charger next to the wall.

Related

Broke my phone! Screen won't turn on [SOLVED]

Hey guys. So I went ahead and dropped my phone in the bathroom. The battery cover popped off and the battery shot out. Anyways, after putting that back in and turning the phone on the screen won't turn on. The phone does actually start up as my boot sound plays and all the capacitive buttons light up. Also the touchscreen still works as I can "feel" my way around and still call make calls using the launcherpro swipe shortcuts I set up and can answer calls and such. So really the only thing is that the screen never displays anything.
Anyways I don't have TEP (look how smart I am!) and am going to take it into the sprint store that does repairs around here tomorrow morning to see what can be done. What I'm asking is for thoughts on what happened and advice if my device is not fixable by sprint. Do you think that the LCD is busted or did I just jiggle something loose inside? I saw a teardown video of the phone but they stopped before getting to the screen so I don't know what it is like in there. Also should I odin it back to stock before taking it in?
Lastly if all that fails does anybody have thoughts on those "mail it to us and we'll fix your phone" sites? I've seen it range from $120-$190 to fix a screen for the epic which I would be willing to pay if these places are for real.
Thanks for listening to my problems!
optmsprim2 said:
Hey guys. So I went ahead and dropped my phone in the bathroom. The battery cover popped off and the battery shot out. Anyways, after putting that back in and turning the phone on the screen won't turn on. The phone does actually start up as my boot sound plays and all the capacitive buttons light up. Also the touchscreen still works as I can "feel" my way around and still call make calls using the launcherpro swipe shortcuts I set up and can answer calls and such. So really the only thing is that the screen never displays anything.
Anyways I don't have TEP (look how smart I am!) and am going to take it into the sprint store that does repairs around here tomorrow morning to see what can be done. What I'm asking is for thoughts on what happened and advice if my device is not fixable by sprint. Do you think that the LCD is busted or did I just jiggle something loose inside? I saw a teardown video of the phone but they stopped before getting to the screen so I don't know what it is like in there. Also should I odin it back to stock before taking it in?
Lastly if all that fails does anybody have thoughts on those "mail it to us and we'll fix your phone" sites? I've seen it range from $120-$190 to fix a screen for the epic which I would be willing to pay if these places are for real.
Thanks for listening to my problems!
Click to expand...
Click to collapse
The only thing I can say is $190 is not worth it,you can buy one on ebay (where I bought my last 3 phones) for around $150 now I'm sure,and you can still keep yours to make phone calls,and you will have all those extras for parts,battery,what ever...
Sent from my SPH-D700 using XDA Premium App
I'd try to odin first, but did you try booting into cwm? If the screen works on there, then it may just be a corruption attack of sorts.
Took it into a sprint store this morning, 1 hour and $35 later had it up and running with a new lcd. Tech said that when he tested the LCD on its own it worked fine, but not when he put it back together. He just replaced it with a different one and I was on my way, no questions asked.
I had no idea about the pricing on repairs! For not already having TEP or being eligible to put TEP on my phone anymore, $35 to fix hardware problems is a ridiculous price. That's some good service!

[Q] Is there a way to test all of the device's hardware without the screen?

I broke the screen on my Note 3. I am considering replacing the screen/digitizer myself, however I am afraid there could be other hardware damage. I don't want to gamble on the screen being the only thing broken working, I'm thinking it might be better to take it into a shop and ask them to fix whatever is broken. Maybe I could replace the screen and then do that, I don't know... I'm sure there have been a million threads about poor saps breaking their phones and looking for solutions, sorry.
Anyway, is there any software available that would let me hook the phone up to my computer and run some general hardware diagnostics? I know the vibration, LEDs, and physical buttons work. I can't think of any way to test the other hardware though. The phone is rooted if it makes any difference.
I'm also just considering selling the thing on ebay and purchasing a new one, with insurance this time.
Give this a try... https://code.google.com/p/androidscreencast/
sent from my ??????? note 3?
Also you could mirror the screen, but in both cases the same problem comes up: how to install the program or change settings in menu without seeing the screen, assuming the touch pad works. Now, do you remember if there was a beep or some type of sound when opening programs before the damage? I think it's a factory setting, but I'm not sure. I would start the phone and see if there is any sound feedback when pressing screen, taking out the pen and walking away etc, anything to confirm the phone is actually booting up and responding. How about hooking up USB to computer and see if you can access it's internal storage?
I think T-mobile can run the sort of diagnostic you're looking for. My first Note 3 had a defective power button. When I brought it in for replacement, they took it into the back and hooked it up to some sort of diagnostic system to confirm the problem. Dunno if it will work without a screen, but when at another store, I watched them hook up and diag an iPhone with what I presume was the same system. They seemed to be working via the PC, not the phone, so it might work for you. Can't hurt to drop in and ask.
Sent from my Nexus 10 using Tapatalk
Thanks for the replies.
I think I'll use the screencast to test as much as possible. Not sure if T-mobile would do that for me, considering I don't have their insurance plan and they wouldn't be replacing it. Not a bad idea though.
Ended up purchasing a new screen/digitizer, so that'll be replaced. Just got to see if anything else needs fixing.

[Q] Can't find a way to back up my phone, need a solution ASAP.

Okay, here's my problem: My phone has a broken LCD screen due to it dropping on the floor one time (With an OtterBox on!). I have a replacement phone, so I need to backup all of my stuff on my original phone, but obviously I can't do it since my screen is not visible, and I know you can back it up from the computer with a number of programs but they either require apps, or need the USB debugging option enabled,which has been enabled on my phone since I first booted it up, but the programs still aren't recognizing the acceptance of the connection. So basically from my knowledge I can't do jack.
If there is anything I can do, I kneed to know now, because tomorrow I either lose everything I had on my phone, or I owe GeekSquad hundreds of dollars.
Oops

OnePlus 5T with a broken touchscreen digitizer

I'm approaching this problem for a second time after about one and a half years of just having the phone stashed in a cupboard. I have made a post regarding this in 2018 but there wasn't any way to access the data inside back then. Now that it's been some time i'm again wondering if i can get any use out of this phone.
Basically what happened was that the touchscreen stopped responding out of the blue and never recovered. I gave this off for repairs back then (I didn't purchase hardware warranty for the phone) and in the repairman's infinite wisdom he said there is a faulty "IC" in the display panel that keeps on burning out even when replaced. He apparently did the repair three or four times but the same issue appears a few minutes after booting up.... So in terms of hardware, i know this isn't fixable.. Or atleast that our approach to the whole thing was wrong.
But now i'm wondering if there is any way to get the OTG working so i can connect a mouse and use this as a... I don't know like a tab or something. I can still get a ton of use out of this thing if OTG works. Problem is OTG was on timeout, And given that the phone was on idle for more than 18 months, OTG is now turned off. Which means unless i turn it on from the in device settings, i can't get it to work.
Any way i can get any sort of use out of this phone? I spent too much on this phone to just throw it away haha...
PS: Old thread FYI - https://forum.xda-developers.com/oneplus-5t/help/help-data-oneplus-5t-unresponsive-screen-t3824092
why not just buy a new digitizer LCD frame assembly?
https://www.ebay.com/i/254034088243?var=553376602652

Question Save data with broken display (black screen)

Hallo,
the display of my POCO F3 is broken, meaning black screen. The device itself starts normally. How can I save my data? USB debugging is disabled and I can't activate it because the broken display of course.
Could anyone help me to save my data?
Thanks in advance!
Your data is safe. However you may need to wait awhile to access it.
Your best bet is to get your screen replaced.
Call around to local cell phone repair buisnesses and see if they any replacement screens in stock for the poco f3. If you have a xiaomi repair center near, even better. If no one had one in stock, your best to order one yourself. (this is where you may have to wait a bit as it may have to be shipped from china) if you're comfortable replacing your screen yourself, do that. But having the broken device in hand, with its replacement screen, and taking those into any cell phone repair store, they should be able to fix you up pretty quickly and shouldnt be too much money since you did the leg work of retrieving the screen.
That's the route I would go, or at least get the ball rolling in a new display coming in the mail. Because trying to retrieve that data without usb debugging on, may be a bit of a rabit hole.
Hi,
To save your data, did you try this (with a PC of course)
https://github.com/Genymobile/scrcpy
Maybe you still have access to the phone despite the broken screen.
Let me know if it worked.
Not well read, "USB debugging is disabled", so it will not work....Sorry
Zinnz said:
Your data is safe. However you may need to wait awhile to access it.
Your best bet is to get your screen replaced.
Call around to local cell phone repair buisnesses and see if they any replacement screens in stock for the poco f3. If you have a xiaomi repair center near, even better. If no one had one in stock, your best to order one yourself. (this is where you may have to wait a bit as it may have to be shipped from china) if you're comfortable replacing your screen yourself, do that. But having the broken device in hand, with its replacement screen, and taking those into any cell phone repair store, they should be able to fix you up pretty quickly and shouldnt be too much money since you did the leg work of retrieving the screen.
That's the route I would go, or at least get the ball rolling in a new display coming in the mail. Because trying to retrieve that data without usb debugging on, may be a bit of a rabit hole.
Click to expand...
Click to collapse
Thanks for the suggestion, but honestly I don't think it's worth it. I have already received offers and they are from 190 € upwards. And I do not trust myself to exchange the display. In this case, wouldn't it make more sense to request a data backup from a company? I don't know how expensive that is though.
Isn't there any way to backup the date in recovery mode? I know that pressing the start and volume up button will get me into recovery mode. I've read somewhere that from there I can back up my data via the MI PC Suite, by pressing the down button twice. Is that correct? Regardless of that, I haven't yet managed to get into recovery mode with the broken display.
You can get a display and just connect it (don't remove the old display, just connect the new one).
It's silly that "ro.adb.secure" only means that it has to handshake and popup to allow ADB.
There really should be a mode where you say, "Only the 3 computers that I've already connected are acceptable and allow no further new ADB clients".
Then *everybody* could leave ADB on all the time.
Renate said:
You can get a display and just connect it (don't remove the old display, just connect the new one).
Click to expand...
Click to collapse
Could you explain to me, how to do this or provide a link to a tutorial for example?
You'd just open the back of your device. The screen hooks in with an orange flex cable. You just disconnect the old one and plug in the new one out the back, just flopping around. You won't have touch, but you can hook up a USB mouse.
I don't know your model. I can't get more specific.
It's just that a new screen by itself out of China can't be too expensive?
And if you like, after you get your data you can try to actually replace the screen yourself.
I have got access to my daughters P30, with broken display, over MHL display. The difficulty is just to find the right place on the display to allow MHL display.
Renate said:
You'd just open the back of your device. The screen hooks in with an orange flex cable. You just disconnect the old one and plug in the new one out the back, just flopping around. You won't have touch, but you can hook up a USB mouse.
I don't know your model. I can't get more specific.
It's just that a new screen by itself out of China can't be too expensive?
And if you like, after you get your data you can try to actually replace the screen yourself.
Click to expand...
Click to collapse
Thanks, perhaps I will try this!
By the way, it's a POCO F3 as mentioned above
Myhand said:
I have got access to my daughters P30, with broken display, over MHL display. The difficulty is just to find the right place on the display to allow MHL display.
Click to expand...
Click to collapse
But won't I need to enter my pin first to allow the MHL display?
If the touch is still working you may be able to enter your PIN.
Get a similar size device, go to the PIN screen, mark the position using clear wrap and a marker. Transfer the positions onto your screen.
Or use a scrap of plexiglas, mark it, then drill small holes and use that to mark your phone.
Or use an usb-keyboard.

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