S8+ can detect wifi but unable to connect to any? - Samsung Galaxy S8+ Questions & Answers

long story short i had my S8+ on the shelf for a while and dropped it so i got a replacement thru insurance. new one came in, try to set it up, can detect the wifi but everytime i try connecting it will say wrong password even though it's right, then i try to connect to ones that doesn't have password it'll just show connecting and then nothing or sometimes it'll say unable to obtain IP. i tried resetting. reformatting and everything doesn't work. so is it defective? also when you go to recovery mode. volume up bixby button power button is it suppose to load to the no command screen by default? or does it load to the recovery screen? i have to do the volume up bixby button power button thing again once i'm in that screen to get the recovery menu.

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HELP! Bootloader unresponsive!

So, I was trying to flash my NS back to stock from TWRP becuase my power button's broke and I'm sending it in.
Anyways, TWRP crashed during flashing (wow....recovery crashing NOT good), and I cant boot the phone except by plugging it in from being off. However, when I hold vol up and get to bootloader by doing that, the bootloader is completely unresponsive to vol presses, and my comp doesnt see the device.
This is NOT good. But I'm clueless as to how to fix something like a bootloader issue. Anyone?
I would try odin. Search around the Samsung webiste they should have an exe which flashes the phone back to factory default. I've seen one posted around here but it depends which version of the phone you have.
Odin requires very careful use. DO NOT CLEAR YOUR EFS!
It may be your only option though.
If you can jimmy your power button and get into the normal bootloader then follow these steps:
1) install Ubuntu
2) install Android sdk for gb or ics whichever you are using
3) install fastboot (download it from cyanogenmod wiki and copy it to Ubuntu's sbin folder)
4) in bootloader menu, connect USB, then in Ubuntu terminal type fastboot reboot recovery (may be reboot-recovery, can't remember)
You should be able to use your phones capacitive buttons to navigate the menu and install a stock ROM
Sent from above
Yeah. Totally forgot you can do that. Try what he said.
Problem is, fastboot doesn't work. The bootloader is completely unresponsive.
It's like it launches into a crash. I can see the options, but the vol buttons dont do anything. However, those buttons work, otherwise I wouldnt be able to even get THAT far.
I'm trying to get the power button to register a press (it randomly does, but Ive had hours of no luck).
Any other ideas? Why would the bootloader launch into a crash. I wonder if it's because the phone is being turned on via power cable instead of the pwr button, but that seems unlikely.
On a side note, I have my efs backup from when I was using 2.3.7, so I've got it handy if I can ODIN the thing, but I dont know crap about odin.
Read his response again. I don't think you understood what he said. You can initiate those commands through your PC instead of pushing the buttons.
obsanity said:
Read his response again. I don't think you understood what he said. You can initiate those commands through your PC instead of pushing the buttons.
Click to expand...
Click to collapse
Sorry, I should have elaborated more.
I have tried on both my PC and Mac (via terminal app) to see the device under 'fastboot devices' command. No devices show up, so it's not even seeing the thing. Neither computer sees the device as being hooked up, as far as I can tell.
It'll boot into the unresponsive bootloader when I plug the cable in and hold vol up. At that point, nothing else happens. Doesnt show up on fastboot, etc.
sounds like your power button went. thats the #1 complaint i read about the power button going, the unresponsive volume buttons. my power button is gone to(will register a response every once in a while, on its own. my volume buttons dont register either when in the bootloader. but, i can get them to register. what i do is take the battery cover of, and gently flick the phone with my fingers right near the power button, but on the back of the phone. most the time, the power button will register that i pressed reboot bootloader, but, sometimes it allows me to select up or down with the volume keys. if it reboots bootloader, i just try again. ive got it down to an art since im in the bootloader often, it takes me about 20 seconds to get the volume keys going up or down. at first it would take me 3-5 minutes. i hope that helps.
simms22 said:
sounds like your power button went. thats the #1 complaint i read about the power button going, the unresponsive volume buttons. my power button is gone to(will register a response every once in a while, on its own. my volume buttons dont register either when in the bootloader. but, i can get them to register. what i do is take the battery cover of, and gently flick the phone with my fingers right near the power button, but on the back of the phone. most the time, the power button will register that i pressed reboot bootloader, but, sometimes it allows me to select up or down with the volume keys. if it reboots bootloader, i just try again. ive got it down to an art since im in the bootloader often, it takes me about 20 seconds to get the volume keys going up or down. at first it would take me 3-5 minutes. i hope that helps.
Click to expand...
Click to collapse
LOL simms thanks. I had a feeling you might chime in here since I had msg'd you earlier about my pwr button going out.
The thing that sucks is that I was just restoring it to stock in TWRP and it just locked up for some reason. I knew as soon as it happened that I was in trouble. I'll keep messing with it and see if I can get it to register 'Reboot Bootloader'.
I was actually wondering about that earlier. I figured that if the vol keys didnt work, then the pwr button wouldnt either in this situation. I know mine randomly registers presses, but now it's being a *****.
We'll see......
try going into the bootloader and give it a few smack on the back, see if thatll register and "press" reboot bootloader(since its the first option). the first time i went into the boatloader after my power button went, i thought that i was **** out of luck too. but, it turned out fairly very manageable with some practice. i usually flick it very lightly to get the volume buttons to move up and down, to hard and reboot boorloader registers.

[Q] [Q} Broken Power Button, Phone won't go into Recovery or Download Mode

The power button on my phone recently has stopped working. I need to get it warrantied, but I am running CM 10.2. I need to Odin back to stock, but I can not get into Download Mode or the recovery. When I go into Download mode, the initial screen pops up, the one where you choose to hit up to continue, or down to reboot normally. After I hit up, the screen goes black and nothing happens.
I really need to get back to stock, as Bestbuy are being dicks, and demanding I do a factory reset before they send my phone in.
Anything? I still need help on this.
Pompsy said:
Anything? I still need help on this.
Click to expand...
Click to collapse
This has been covered at least 10 times in the past few months we need a sticky. Take your battery out hold your phone so the power button is facing a table or floor and slam that side a few times it should work again (Temporary). You might need to hit it on the surface really hard 10-20 times before it works. Just not to hard or else you might crack the screen. I used a mouse pad to soften the impact. This trick no longer works for me so I ripped the button off. After about a month of doing this I needed to use things that would only hit the button to make it work. About a month after that nothing worked so I just took it off the motherboard and now boot from a off state by plugging into the wall and enter odin mode deny the prompt and it kicks me into a workable state.
ThePagel said:
This has been covered at least 10 times in the past few months we need a sticky. Take your battery out hold your phone so the power button is facing a table or floor and slam that side a few times it should work again (Temporary). You might need to hit it on the surface really hard 10-20 times before it works. Just not to hard or else you might crack the screen. I used a mouse pad to soften the impact. This trick no longer works for me so I ripped the button off. After about a month of doing this I needed to use things that would only hit the button to make it work. About a month after that nothing worked so I just took it off the motherboard and now boot from a off state by plugging into the wall and enter odin mode deny the prompt and it kicks me into a workable state.
Click to expand...
Click to collapse
I can get into the system just fine. When I go into the recovery or download mode, it doesn't stay in that mode. I tried the banging thing, and it made my power button go from intermittently working, to not working at all.
keep doing it until it works. The button is sticking that is why it reboots/stopped working.
Pompsy said:
I can get into the system just fine. When I go into the recovery or download mode, it doesn't stay in that mode. I tried the banging thing, and it made my power button go from intermittently working, to not working at all.
Click to expand...
Click to collapse
It sounds like your power button is physically broken, and it is activating intermittently, which is stopping the phone from entering download mode. My only experience with this problem is my own phone but ultimately mine got so bad that I had to rip the button off the motherboard, as ThePagel did. Your symptoms sound the same as mine.
You can try this procedure to get into recovery, which works for me without a power button. You will probably have the same problem you are having now with the phone rebooting on its own before you actually get into recovery, because the power button is activating.
1. Take the battery out of the phone and unplug it from USB power.
2. Plug in USB power.
3. While holding down the volume-down button and the Home button, insert the battery (this is a little tricky).
4. The phone should start and warn you that you are entering Download mode. If you want to use Odin to return to stock, do that now.
5. If you want to get into Recovery instead, press Volume Down to reboot and then *immediately* push and hold Volume Up and Home simultaneously. The phone should reboot into recovery. Mine does.
If that doesn't work, and you can't get a new phone without returning it to stock, then prying the power button off the phone's motherboard may be your only solution.

[Q] Moto G xt1033

Sorry, i am really new to this site, and never had a problem like this with a previous phone.
I get home from the grocery store and my phone is off, so it seems, plugged in it, got the M to pop up do the little world thing, then the screen goes to black,
i leave it to charge a little while, come back, and everthing on my phone is working , except for the actual display{now i know its not the display or screen because when i boot it there are no problems with the boot/restart} and if i touch around the screen it lightly vibrates, weird,
i put it to boot menu and my first time trying a normal restart nothing, so i go to motorolas website to get an application to back up my data or something get the motorola device manager and its useless, all it does is tell me my drivers are up to date, look around some more for an easy backup program can't find any except one that won't connect because i can't see where to press ok on the screen
just ended up copy pasting over all 5 gigs of hardrive space
i try to do factory reset, but if i click factory on the boot menu it just restarts it, if i go into recovery it pops up the picture of the opened android robot, and says no command, i have tried pressing volume up for 15 seconds, and then taping the power button to no avail,
interestingly enough once i managed to get the screen on for the phone then it faded to black like a screen saver never to come back.
Anyone know what i can do to unbrick the phone?a program that i can go in and restore it back to factory settings?
i recently updated to 5.0 maybe on friday, haven't had problems, or dropped phone since then
just extremely frustrating,
Recovery key combination was changed after lollipop. Press and hold power button for few seconds and then tap vol up (when you see android robot and no command)
Sent from my XT1033 using XDA Free mobile app
U can flash stock firmware also from your pc..press vol down + power button for fastbootmod then press vol down and then vol up and power button for recovery mod

BSOD - Can't get safe or recovery mode either

Hi folks. I've got a problem that I don't see anything quite matching in here. I have a Straight Talk/Verizon GS7. Last night I installed an app do to USB tethering on it. It worked great for the testing. After I disconnected and it sat idle for a while, I heard a notification sound and the blue light started flashing. I push the home key and the "back" and "window" key lit up, but the screen is black.
So here's what I've tried so far.
I tried to hold the power button to turn the phone off. Nothing.
I can soft reset by holding volume down and power. I get the splash screens for GS7, Samsung and TracFone. Then BSOD.
I can't get safe mode. I can't get recovery mode.
I can get to download mode. "Volume down, home, power"
The phone has developer tools turned on and USB debugging is enabled. Is there a way to do anything helpful from download mode? I'm not too concerned about losing data, so flashing a new ROM is fine by me.
stageman said:
Hi folks. I've got a problem that I don't see anything quite matching in here. I have a Straight Talk/Verizon GS7. Last night I installed an app do to USB tethering on it. It worked great for the testing. After I disconnected and it sat idle for a while, I heard a notification sound and the blue light started flashing. I push the home key and the "back" and "window" key lit up, but the screen is black.
So here's what I've tried so far.
I tried to hold the power button to turn the phone off. Nothing.
I can soft reset by holding volume down and power. I get the splash screens for GS7, Samsung and TracFone. Then BSOD.
I can't get safe mode. I can't get recovery mode.
I can get to download mode. "Volume down, home, power"
The phone has developer tools turned on and USB debugging is enabled. Is there a way to do anything helpful from download mode? I'm not too concerned about losing data, so flashing a new ROM is fine by me.
Click to expand...
Click to collapse
hi
Seem like flashing a new firmware may be the reasonable option...
Try flashing first with home_csc if you know what your CSC is at the moment..that way you may avoid losing your data
if that option is off the table...then use CSC and flash/ format your phone...
for your reference check here
https://forum.xda-developers.com/galaxy-s7/how-to/official-stock-firmware-update-odin-t3369431
https://www.sammobile.com/forum/showthread.php?t=30800
Pay attention to step 6 if you use CSC
Thank you for the response. While I was downloading the ROM I came across "Vysor" and was able to use it to control the phone. Using it I was able to get the phone to power off and get into recovery mode. I wiped the cache partition and uninstalled the Tether app and all is good now. Now I just have to decide whether or not to cancel the RMA that Straight Talk is sending me...
stageman said:
Thank you for the response. While I was downloading the ROM I came across "Vysor" and was able to use it to control the phone. Using it I was able to get the phone to power off and get into recovery mode. I wiped the cache partition and uninstalled the Tether app and all is good now. Now I just have to decide whether or not to cancel the RMA that Straight Talk is sending me...
Click to expand...
Click to collapse
great to know you solved.
If you know what caused the problem and fix it , i would keep the phone you have , was new when you got it right?

Galaxy S6 - Cannot proceed past download mode warning screen

I have a Galaxy S6 with a faulty power button.
I took it to a Samsung Repair Centre.
After "diagnosing" the problem (which I had to pay for), I was told that the faulty power button was due to "liquid damage" (it has never been in water everything else works fine).
They said it would cost £180 to repair and would require they replace the whole motherboard.
I refused as I cannot afford that repair and would rather consult a third party shop or purchase a brand new phone.
Unfortunately, the state I received the phone back in unusable.
Before the phone was sent in, it was at least in a state where I could at least use it (providing I kept it charged and did not power it off).
Now its just stuck in a recovery mode => restart => no command (boot loop), and I cannot select an option from the recovery mode screen because the power button does not work.
I planned to flash the stock firmware to try in order to get it out of this loop, and I can get it to boot to download mode as the volume buttons and home button work fine.
However, now when I'm at the cyan warning screen it prompts me for volume up to continue.
I press volume up and nothing happens. I know that these buttons work for a fact as in recovery mode I can navigate up and down.
Any ideas whats going on? or what I should try next?
Videos of the issue
(Tinfoil theory: Did they purposefully lock down download mode after inspecting it?)
If you have time, continuously keep pressing volume up and power until it gets you into Odin. Best of luck.
We're on slightly different devices, but mine has the same defect. The power button failed overnight, it worked to start the device but afterwards, the power button became stuck in the pressed state and I couldn't lock the device (not mechanically, it is still clicky). The volume down button still worked (I don't have to hold power to force a restart because it's stuck in the pressed state), I wanted to take a look at the knox status in the download mode, it didn't respond to volume up, this means that it's dependent on not having power pressed. I somehow got the restart confirmation to show with the power button, twice, so it's not completely defective. The volume down button cycled through being stuck and non-clicky, working normally, and being stuck while being mostly clicky, like the power button, though it doesn't seem to be stuck in the pressed state. It's likely because I kept pushing Volume Down for hours in a terminal emulator. Today, it takes 5 mins of torturing Volume Down to restart the device. Eventually, it might fail completely. This device seems to be able to ignore volume up / down if those buttons are stuck and work almost completely normally.

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