Damn circle with diagonal line - T-Mobile Samsung Galaxy S8+ Questions & Answers

My Samsung s8+ has lost signal for the past two days. it didn't fall or get wet neither was any harm done to it in any way. I put it off whilst charging overnight. In the morning I woke up ,booted the phone only to discover it had no signal bars but a circle with diagonal line.
I've tried factory reset, change sims, multiple reboots but nothing seems to work. Any recommendations ? thanks in advance.
ps. i also can't get beyond the first menu of the "*#0000# secret menu..

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Strange issues after water damage

Yesterday morning my girlfriend knocked over a cup of water off of my bedstand and after wiping up the mess we went back to sleep. I woke up and realized my phone was drenched as a result of this happening, as it was charging in a spot I usually don't put it. I fumble around with it and realize it's messed up pretty bad, though not black screen.
Fast forward to doing the rice treatment and using an un-harmed battery without the pink water damage indicator, all seems good. Phone turns on, runs full speed, plays sound, camera works, data works, etc. This is running task's AOKP.
I use it throughout the next day and then I notice my mobile connection drop completely. This isn't like 1 bar, it's like the triangle logo empty as in no service. Flipping between airplane mode doesn't seem to help like it normally does. Sporadically I'd get a bar with 3G or something.
Then, I flashed the new version of AOKP and upon reboot my phone's data is still not working and the network connection is always dead as well. But, there is also noticeable lag. Pressing the app drawer takes 3 seconds to load and I see the animation in very slow motion. Using a countdown app, it is literally noticeable that seconds are taking substantially longer than they should.
ODIN to complete stock and the lag is still there. Data is in and out. Also if I let the phone sleep, it sometimes either turns off or freezes, I need to take the battery out to boot it again. Basically, something is up - and it's making no sense. My phone is working in slow motion with no mobile data/network after drying out water damage, and flashing new ROM's or ODIN to stock didn't fix anything. I checked APN's, I checked kernel speeds (when it was still on AOKP, right now stock), I checked mobile data on and off, nothing is working. On the off chance I do get lucky and have data + network, I try to make a call and both of them vanish.
I don't think I'll get any help bringing this to ATT cause the indicator on the phone itself is pink, so does anybody here have any ideas on what the heck to do? Being that the issues persist whether I'm rooted or not, custom rom or stock, I believe it's a hardware issue - right?
Yep. Most likely. A trip to repair will most likely be required.
The most common error is trying the phone out after it gets wet.
Best to do is immediately take out the battery, and use the rice, desiccant, blow dryer, whatever method right then.
After a few days of sitting in the rice or silica gel packs (in a sealed bag) THEN try powering it up.
Those first seconds of powered up state with the moisture present are the most damaging.
The best thing to do when a phone gets wet is to immediately disassemble it and clean everything with a high grade isopropyl alcohol. That will get all the moisture out and remobe any corrosion on the boards. I would still take it apart if I were you and let it dry completely for about a day. It may bring it back to life. There may be some water hanging in the antenna wire plug or in the radio itself. Watch some youtube videos on the the disassembly and go slow.

[Q] Static black and white noise on screen when phone boots.

Hey,
I was just sitting at the computer and I look at my phone. All of a sudden it shows the bootscreen("Samsung Galaxy Note II N7100" etc).
I felt like... huh that's weird, well maybe something went wrong with Vodafone(They had problems with phones rebooting when getting the network settings for their National Alert system). After having the screen stuck at boot for like 30 seconds I took a closer look. That's when I really freaked out. All of a sudden all kinds of pixels slowly started getting all kinds of red, blue or green colors. Fast I turned off the phone(Power button didn't work even if I held it for 8 seconds). So I took out the battery. Now every time I boot my phone it gives the following screen:
Image can be found at:
h**p://i.imgur.com/bAJaAkN.jpg
Does anyone have any idea what this could be and would it be possible for me to fix it?
If not I will of course send it to Samsung.
Thanks,
Martin
Did you manage to find a fix i just ran int the same problem
srudes2 said:
Hey,
I was just sitting at the computer and I look at my phone. All of a sudden it shows the bootscreen("Samsung Galaxy Note II N7100" etc).
I felt like... huh that's weird, well maybe something went wrong with Vodafone(They had problems with phones rebooting when getting the network settings for their National Alert system). After having the screen stuck at boot for like 30 seconds I took a closer look. That's when I really freaked out. All of a sudden all kinds of pixels slowly started getting all kinds of red, blue or green colors. Fast I turned off the phone(Power button didn't work even if I held it for 8 seconds). So I took out the battery. Now every time I boot my phone it gives the following screen:
Image can be found at:
h**p://i.imgur.com/bAJaAkN.jpg
Does anyone have any idea what this could be and would it be possible for me to fix it?
If not I will of course send it to Samsung.
Thanks,
Martin
Click to expand...
Click to collapse

Part of Note 10+ Screen Goes Black

This problem just started today, I've done nothing with settings, have not installed any apps recently, did not drop it, expose it to water, or anything that could possibly cause damage. What's happening is that basically about 1 inch-1 inch 1/8 of the bottom of the screen turns black, and at almost random, sometimes it could go a minute and half or so, sometimes 30 seconds, sometimes within 5 or less seconds. The strangest part? The part that goes black still operates fine to touch, so if an icon or letter of the keyboard, or whatever, is located in that area, it can still be selected/operates. Taking a screenshot to try to show it is worthless since it'll show the screen as just fine, so I attached a picture and a video of the problem from an old phone of mine. The blacked out are will go right back to normal if you turn the screen off, wait a second, and turn it back on. Also, if the blacked out area is there, it'll go away after about a half a second when the screen dims right before the screen inactivity turns the screen off. I've only had this phone for a couple months, I got it back on December 7th 2019.
I learned something else. If I manually lower the brightness to a particularly low level, the black goes away, so it seems to in some strange way be related to the phones brightness level (I use auto brightness), this also might explain why the black comes at differing intervals, as my brightness is adjusting constantly to my surroundings, the time before it comes is either shortened or lengthend based on the brightness.
It doesn't seem that strange that the touch still works in that area as the digitiser and the display are two different things. I would factory reset (because Samsung will make you do this anyway) and if still an issue, take it directly to Samsung, that does not look good.
willhemmens said:
It doesn't seem that strange that the touch still works in that area as the digitiser and the display are two different things. I would factory reset (because Samsung will make you do this anyway) and if still an issue, take it directly to Samsung, that does not look good.
Click to expand...
Click to collapse
I was just thinking I might have to do factory reset, if that doesn't work, and it needs repair/replacement, do I go to an authorized Samsung repair place (I know I have one within about a couple miles of my house), it's
obviously well within warranty, or take it to At&t store as I do have that AT&T Protect Advantage coverage for my phone?
willhemmens said:
It doesn't seem that strange that the touch still works in that area as the digitiser and the display are two different things. I would factory reset (because Samsung will make you do this anyway) and if still an issue, take it directly to Samsung, that does not look good.
Click to expand...
Click to collapse
Did the factory reset, turned out to be a waste of time. That black bar was showing immediately, right at the setup screen. So I guess it's safe to say that it's a hardware issue, defective whatever. Funny story is that when I bought this phone, my att store only had two of them left, one was immediately defective, it wouldnt get past the main logo screen, and now I got this one and it became defective within just a couple months, got to love it.
willhemmens said:
It doesn't seem that strange that the touch still works in that area as the digitiser and the display are two different things. I would factory reset (because Samsung will make you do this anyway) and if still an issue, take it directly to Samsung, that does not look good.
Click to expand...
Click to collapse
Just left AT&T store where I initially purchased the phone. They're shipping out a brand new note 10+ to me today and I'll get it tomorrow ?
Glad to hear! That definitely sounded like faulty hardware. Funny you saw two failures, I guess it will happen with such complex devices.
Note 10 plus screen goes black
Hi i thought i was crazy until i saw your thread. The same thing is happening to me but it does not go continuously so id see two red squares first theyre really small and they appear anywhere on the screen then if try to screenshot them they show upblack in the screenshots instead of red . I just need to know if anyone found a solution yet because my phone came with the warranty booklet but it wasnt filled out.
Tech girl99 said:
Hi i thought i was crazy until i saw your thread. The same thing is happening to me but it does not go continuously so id see two red squares first theyre really small and they appear anywhere on the screen then if try to screenshot them they show upblack in the screenshots instead of red . I just need to know if anyone found a solution yet because my phone came with the warranty booklet but it wasnt filled out.
Click to expand...
Click to collapse
You just need the proof of purchase, or, if you got it on contract, the contract itself will suffice

Touch screen with horizontal dead zones

Suddenly i have 2 horizontal bars that are dead to touch, there was no phone drop or miss usage the phone was charging during the night as usual, and this morning it was in the current state.
Please see the attached screenshot.
I did a cache clear which obviously did't do anything, i just opened the phone and detached and attached back the cables these two and this one sadly it did not work
Any idea why these 2 areas specifically and why do they have the same exact size ? Can it be another cable ?
Any ideas on what i should o next ? I realllyyyy want to avoid buying a new screen or phone so any help is really appreciated.
Currently i am trying this sort of discharge technique, seems a bit amazing to work but there is nothing to loose, and there are several reports of it working around the web
https://www.youtube.com/watch?v=VERfODYHX3g
But so far no luck, I wonder if the OP3 has some sort of discharge protection trough the screen, or if there is any other way to send a discharge to the affected rows ?

Galaxy watch SM-R800 won't boot

I am having an issue with my Galaxy watch SM-R800, it was working perfectly a week ago and it suddenly turned off. When I press the power button it shows the splash screen with the text Galaxy watch for a few second and then turns off, I have tried rebooting and this has resulted in the same thing. I have also tried to factory reset the watch and the same problem occurred, flashing the rom resulted in the same. I have also tried to let it charge the entire night and when loading up wireless download option it showed that the battery is full also when placed on the charger the screen turns on showing that the watch is charging it shows the percentage and then it turns off again. I do have to note that when in fastboot mode or when in wireless download the watch runs normally without turning off. I have not been able to find anyone with this same issue so far and even the ones with similar issues didn't want to offer any help. If you guys have any ideas or solutions please let me know.
Mar4e said:
I am having an issue with my Galaxy watch SM-R800, it was working perfectly a week ago and it suddenly turned off. When I press the power button it shows the splash screen with the text Galaxy watch for a few second and then turns off, I have tried rebooting and this has resulted in the same thing. I have also tried to factory reset the watch and the same problem occurred, flashing the rom resulted in the same. I have also tried to let it charge the entire night and when loading up wireless download option it showed that the battery is full also when placed on the charger the screen turns on showing that the watch is charging it shows the percentage and then it turns off again. I do have to note that when in fastboot mode or when in wireless download the watch runs normally without turning off. I have not been able to find anyone with this same issue so far and even the ones with similar issues didn't want to offer any help. If you guys have any ideas or solutions please let me know.
Click to expand...
Click to collapse
My Galaxy watch 46mm is also in the same case and I also do everything to start the watch, nothing to do: flash (the bypass menu works well, the connection by wifi is established no problem), wash, change the charger, it started only once for 10 min, and it came back in the dark .... Is there a solution ????
Is there anyone who can help us and thank you
After three days on the doc "without power", I washed it with soap and dried it with a dryer, after two hours I reset it under recovery mode, hop the beast starts... I'm impatient if it holds up or if it comes back to the dead screen.
After 10 hours of operation, it fell asleep with the black screen "dead"... so it's not a success. thank you samsung for sucking our money for a gadget that loves its charging support without being able to wake up..... after a day, two, three or maybe eternity... Decision, I'm going to change the manufacturer either Huawei for battery life or apple for design.
After 18 days, I tried all the resuscitation procedures, none of them succeeded in making the "beast" watch starting, so I decided to wash it, I immersed it in a cup: warm water + vinegar for 15 min and a "hot" drying with dryer for 5 min and another "cold" drying of 3-5 min, the beast finally started...
It is under test ...
Has there been any more progress made on this issue lately?
I have an SM-R800 46mm with the same issue. Everything works fine in Download and Wireless Download modes. Recovery mode does nothing other than switching off the watch.
The watch turns off after the first logo is displayed so i know the watch is working.
I can also flash multiple firmwares via Wifi (AP mode) and these all complete and pass ok using NetOdin.
The battery has been fully charged and then completely drained to 0% over a 2 day period, then fully charged again. I have even tried turning on the watch while on the charge dock, but no dice.
To me it looks like there is some sort of issue with the boot loader that is not completing initialisation to proceed to the next part and complete the boot process. - Is there anyway of enabling a log trail on the watch, or would this need debug mode to be switched on (Which is impossible if the watch does not boot)
My wife has an SM-R815 that shows the initial Samsung logo, then a smaller Samsung logo, then the watch face. I have not messed with her watch as it is fully working and I don't want to break it.
What would Samsung do to the watch if it was sent to them for a paid for fix other than re-flash it? Do they have magical firmware or would they just replace the internals with a working board?
Looking inside the back case, there does not look to be anything damaged with the circuit board, and the battery does not seem to have expanded.
I am also dubious about the solution to immerse in water and vinegar ans would probably try Isopropyl Alcohol instead?
It is frustrating that this watch is only 3 years old and now unusable.
Allready tried Combination Firmware?
To check if something is dead or half dead...
Best Regards
adfree said:
Allready tried Combination Firmware?
To check if something is dead or half dead...
Best Regards
Click to expand...
Click to collapse
Yes I tried the combination firmware, but it still would not boot. At weekend I tried to downgrade to a lower Tizen version and something bad happened and now the watch only shows a flashing yellow screen I have ordered a usb cable to try and re-flash using Odin instead of Net Odin, but the cable won't be delivered until Wednesday 19th Jan. Will update here if I get any success.
leking said:
After 18 days, I tried all the resuscitation procedures, none of them succeeded in making the "beast" watch starting, so I decided to wash it, I immersed it in a cup: warm water + vinegar for 15 min and a "hot" drying with dryer for 5 min and another "cold" drying of 3-5 min, the beast finally started...
It is under test ...
Click to expand...
Click to collapse
After 5 months (October 16-March 16) the watch works without problem, and that, after its shower with: warm water and a small amount of vinegar followed by drying with a hair dryer and a hard reset.
FINALLY, I BELIEVE IT'S A PHYSICAL SOLUTION
dvdfilmbuff said:
Has there been any more progress made on this issue lately?
I have an SM-R800 46mm with the same issue. Everything works fine in Download and Wireless Download modes. Recovery mode does nothing other than switching off the watch.
The watch turns off after the first logo is displayed so i know the watch is working.
I can also flash multiple firmwares via Wifi (AP mode) and these all complete and pass ok using NetOdin.
The battery has been fully charged and then completely drained to 0% over a 2 day period, then fully charged again. I have even tried turning on the watch while on the charge dock, but no dice.
To me it looks like there is some sort of issue with the boot loader that is not completing initialisation to proceed to the next part and complete the boot process. - Is there anyway of enabling a log trail on the watch, or would this need debug mode to be switched on (Which is impossible if the watch does not boot)
My wife has an SM-R815 that shows the initial Samsung logo, then a smaller Samsung logo, then the watch face. I have not messed with her watch as it is fully working and I don't want to break it.
What would Samsung do to the watch if it was sent to them for a paid for fix other than re-flash it? Do they have magical firmware or would they just replace the internals with a working board?
Looking inside the back case, there does not look to be anything damaged with the circuit board, and the battery does not seem to have expanded.
I am also dubious about the solution to immerse in water and vinegar ans would probably try Isopropyl Alcohol instead?
It is frustrating that this watch is only 3 years old and now unusable.
Click to expand...
Click to collapse
I am also dubious about the solution to immerse in water and vinegar ans would probably try Isopropyl Alcohol instead?
===================================================================
I confirm that this is the right solution "for me it worked" and you have nothing to lose...
Take my advice that I posted last October 16 2021 "so far the watch is working wonderfully".
I got same issue trying this Ludacris idea but didn't do nothing
I got the same issue today. when it first happened I was able to reset it and after an hour same issue. Hope someone by now has been able to find a solution for this.
I can confirm I have resolved the issue with my watch using contact spray to clean the internals. Water resistance is probably no longer working as i had to open the watch, however it now works great, 1 month so far with no crashing or boot issues.
Mar4e said:
I can confirm I have resolved the issue with my watch using contact spray to clean the internals. Water resistance is probably no longer working as i had to open the watch, however it now works great, 1 month so far with no crashing or boot issues.
Click to expand...
Click to collapse
when the problem started, was it due to being in contact with water? mine started when I started working out with it and got drenched in sweat.
daniel.b said:
when the problem started, was it due to being in contact with water? mine started when I started working out with it and got drenched in sweat.
Click to expand...
Click to collapse
Yes first time it happened i was washing my hands. After that it would do that at random, i tried flashing every ROM but the issue wasn't resolved. I would only get it to work by disassembling it apart and reassembling it and sometimes applying pressure light pressure to the sensors would get it to work for a few days. After i cleaned it with the contact spray i started working perfectly even when in touch with water. If you plan on using contact spray i would advise you not to spray around the battery contacts or the battery itself and wait for about 5 minutes to make sure all the spray has evaporated and there is no residue before reassembling and powering on the watch
Mar4e said:
Yes first time it happened i was washing my hands. After that it would do that at random, i tried flashing every ROM but the issue wasn't resolved. I would only get it to work by disassembling it apart and reassembling it and sometimes applying pressure light pressure to the sensors would get it to work for a few days. After i cleaned it with the contact spray i started working perfectly even when in touch with water. If you plan on using contact spray i would advise you not to spray around the battery contacts or the battery itself and wait for about 5 minutes to make sure all the spray has evaporated and there is no residue before reassembling and powering on the watch
Click to expand...
Click to collapse
I got mine to work. I just used a different charger and cable but still used the original charging dock. Thank you for the great info though. I guess my problem was the charger all along and not software or water damage.

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