S9+ bricked after reboot, only showing USB device briefly - Samsung Galaxy S9+ Questions & Answers

My S9+ was acting quite weird this morning. Some apps continuously crashed or wouldn't start.
So i rebooted my phone (just from the normal power button menu) and then it went completely black.
It doesn't charge (or at least, it doesn't show it charging), it doesn't respond to forced resets and the screen is completely black.
The only thing it does, is briefly show a USB device when connecting it to a PC.
I've connected it to a Linux dev computer i have laying around and i see the following device connected briefly:
VID: 0x04e8
PID: 0x1234
It stays connecting longer if i hold the power button (about 8 seconds before power cycling).
The only things i could find online were some very old threads about Samsung's DNW mode, but nothing from this decade.
I think my Flash chip might be cooked, but i hope i'm wrong.
Anyone got any experience with this?

Update
I've sent it back to Samsung for repair under warranty.
The flash chip was gone. It started corrupting writes and finally it was so far gone that it couldn't load the bootloader.
They've replaced the main board and battery (probably because they tested it and saw it was going bad), that fixed it.

Related

Phone won't boot up

I have a Cingular 3125, working fine for weeks, happened that two days ago, I was charging the phone and transferring files to my computer via Bluetooth, nothing unusual, then it just got frozen, nothing responding, so I just took out the battery to manual reset the device and reinserted it, then tried to turn on the device, but it refuses to boot, no lights at all, also when I attach the phone charger, it doesnt show the usual orange led when charging, but I can feel that the phone gets warmer because the charger is attached and then after a while it gets a bit cooler, just like when it finishes charging, the usual behavior, but again, no lights at all trying to boot it or even attaching the charger, I've tried taking the battery off for hours and nothing also, and I wasnt overclocking the phone... would you say it just died? or maybe someone had same issues and solved it someway? thanks.
try this
OK, I don't remember where I read this, or the exact procedure, but give this a try.
remove the battery, press and hold the red call end key (power key) for 30-45 seconds. insert battery and do a hard reset, IE.. power on holding the 2 top soft keys while powering on the phone.
this method is supposed to clear any mother board issues and reset the phone. It has been a couple of years since I read the procedure so I am not sure if this is the correct way, if it does not work, try the same thing, only try taking the battery out, then put it back in and press and hold the power key for 30 - 45 seconds.
may or may not work, but can't hurt to try.
i had the same problem with startrek which i had bought from eBay
one more advice - try to hold record (notes) and camera buttons and insert an USB cable to your PC, it should enter to Bootloader mode
well, I have dissasembled the whole thing, I havent reached anything, even disconnected the backup battery, nothing, have checked battery with a multimeter and is full loaded... in short, someway the cell phone seems has just died, Erofich, to enter bootloader mode, the phone must turn on, it just doesnt want to start at all, no lights when connecting charger or USB cable... I'm sad because it was working fine with no problems for three months and more sad because it's the end for me to windows cellphones for a long time, I've invested a lot in this phone, accesories, unlocking, and even the same day it died also bought more memory and a neat skin cover and I'm not in mood to invest more in a cell phone so I'll use a spare crappy feature phone.
Thanks for your support.
one last effort
You could try one last thing, this has worked for me with a couple of startreks,
take the phone apart, and take the motherboard out, use a hair dryer to heat the motherboard, don't get crazy with it, but using the hair dryer on the high setting for about 30 to 45 seconds at about 3-5 inches, might revive the phone. (don't heat the battery, just the motherboard)
Put the phone back together while it is still hot (but not so hot that it will burn your fingers) and try to fire it up.
This has worker for me in 3 cases (phones that I bought off eBay that had the same symptoms as you have described)
good luck
big problem!!!!!!!!
I have been struggling to flash (again) the great pro V2 rom, but I always used my VMWare based XP windows version on my Vista laptop. Today I could use a genuine XP Laptop and I could make a connection and start the upgrade!
Sounds good? That's what I thought too, until the upgrade stopped at 70% (and I didn't touch anything), because of a connection error. I followed the text on my PC screen and I finally it started flashing again for a few seconds and then my startrek suddenly restarted, but it stops at the first splash screen! I tried to get my device back to bootloader mode (push 2 soft buttons and start), but no bootloader mode, only the 1st splash.
I solved the problem.

[Q] Brand New Streak - No Response (?)

Last night I bought a brand new Streak 5 from a local guy. Box was sealed, no mention of refurb, inner contents were sealed.
I didn't have time to test it and the guy I bought it from said he had gotten it a while back from a work raffle and that it had been sitting in a drawer in his house - I have no reason not to trust that he was lying to me.
When I actually got time to unbox it, I popped the battery in and tried to turn it on. The menu buttons lit up briefly and then when out. The screen never came on. Since then, it has been completely unresponsive.
I've tried to charge it with the wall charger, as well as my PC. Neither seem to be doing anything and my PC doesn't recognize it - even with Dell's software installed.
I've tried to take out the battery and hook it up to the wall charger and my PC to get it to turn on.
I've removed the Micro SD.
There is no SIM card in it currently.
I ordered another battery and an external battery charger. They should be here in a few days. I have the current battery rigged up and charging with a spliced USB cord.
What else can I do? I feel like I've done everything "simple" thus far and I'm a little nervous when it comes to utilities like Streakflash.
I'm coming over from the iPhone world and my Android use has been limited at best. Any help is appreciated.
What happens on the device itself after having had a chance to charge?
Does it light up when you press the power button, or nothing at all?
Thanks for the response.
There is no indication that it's charging. The screen doesn't come on, or even flash. The buttons do not light up. However, I don't believe it's the cable or the connector since my PC responds with an unrecognized device -- "Qualcomm CDMA Technologies MSM" prompt. I also managed to get my PC to tell me that the device "wasn't plugged in."
I've tried to get some response out of it in every possible combination regarding the buttons, battery, back cover, microSD, and where it's plugged in. It just sits there. No lit screen, no lit menu buttons, nothing.
If it helps, I'm running Windows 7 64 bit. I've installed every possible thing I could find regarding the Dell drivers and my OS.
It sounds like your device somehow got shipped without having all the software installed onto it.
Can you provide more information about the device itself, such as it's manufacture date or any other info on the box/device labels? Devices getting shipped half baked like that isnt exactly common.
This sounds like a legitamate time to use QDL tool to reflash it, but I cant provide any help with that as I've never used it.
Can you use QDLTool if your computer doesn't even recognize it?
The date on the label is 10/12/2010.
If it's displaying as "Qualcomm CDMA Technologies MSM" that's a sign that it should be able to get into upload mode as that's what the driver qdl tool uses I believe.
It's likely out of warrentee already, so you prob have to fix it on your own if at all.
I can't get it to respond to anything I do. It's very disheartening. I really, really wanted this phone, too.
I'm downloading the latest version of Ubuntu. I'm going to see if I can make any headway through Linux.
I can't get QDLTool to pick-up the device, either. I get an error message when I try to use it and scanning for it does nothing.
Did you install the driver bundled with it properly?
If it still doesnt detect it after that it's likely a dud
use qdltool, you can download it from here
http://www.box.com/s/rj9xd5tl7v5amimbm3youll need to make sure you have all drivers installed though, info is on this forum somewhere,
once installed run the software on pc you should see a big box with "run" on it, click run then connect phone by holding volume up and connecting usb then qdltool will do rest from there
when i got my both my dell streak it was the same deal. first one came exactly as how you described it. I put in the battery, made SURE THAT THE CONNECTORS ARE lined up on the back case, and then tried to power it on. NOTHING.
It seems even if the battery was fully charged, the only real way to turn it on was to connect the streak to the power adapter and then press hold down the on button. WHen the device finally gave me the dell logo, it would just sit there stuck. So i took out the battery, and redid it. Then went into fastboot mode (hold camera and power) and it wouldnt detect the touch screen. It seems that the touch scree was faulty and hence it would remain stuck on the dell logo. I tried to calibrate the touch screen a few times, all failed. Then finally for one time it worked, and the touch screen came back to life. Shortly after though upon booting into the old stage 1.6, it restarted and the touch screen failed again.
So i sent it back to rogers and they gave me a replacement phone. Same deal, when you first put in the battery and the case it wouldnt start no matter what. Only upon plugging it into the power adapter then it starts up. However this new one had a functional touch screen.
1) check out the touch screen by using the fastboot, or stock recovery. If you get error messages, it means your screen is toast most likely and then you might have to open her up and see if all the connections are lined up
2) if it doesnt boot at all, try connecting it to the power adapter first and then after about 30 seconds power it on. You should be able to see the dell logo unless as the guys stated before the software is hosed.
3) if the software is totally hosed, tried to get it into fastboot mode or recovery and see if you can reflash the device.
something like that...
Thanks for the comments, guys.
As of now, it's still in the same position it was in. It doesn't respond to any combinations of buttons, battery in/or, or plugged into the wall/pc.
I'm assuming that the situation it's in currently is what's preventing any sort of legitimate connection between the phone and my PC.
My last shot is a battery and external charger that should be here next week.

Serious problem - Well elaborated. Mido not booting. Urgent help required.

I was on the latest MIUI (9.something), boot-loader unlocked, redwolf recovery (v27), last seen battery was ~50% charged (before going off).
And, I was using my phone. Suddenly screen goes off and nothing comes up. I tried to restart, it doesn't work.
Finally I googled the problem and tried these things:
1) Press power button 5 times, then try to start the phone by long pressing power button.
Result: Screen open up, that initial screen with MIUI logo, I keep the button pressed, screen goes off and instantly starts again with booting started. Now, as soon as boot finishes, that *low-power* sound comes and it switches off.
2) Press power button 5 times, then try to start the phone by long pressing power button. This time when the screen comes up first time, I press (vol-up + power) to boot to recovery.
Result: As expected. That screen goes off and instantly another screen comes up with the recovery splash screen. Recovery comes up. There on the top, it shows two weird stats: (CPU temp 105 deg C, battery 0%).
3) Press power button 5 times, then try to start the phone by long pressing power button. This time don't press anything on the first screen.
Result: The screen goes off and that's it.
Some weird symptoms worth knowing:
1) Whenever I plug the charging cable (either with charger or, laptop) it just do not boot, neither to system nor to recovery.
2) The micro-USB port is damaged I guess. Last time (a day before all this), I tried to connect phone to my laptop but the socked seemed lose. It was just not connecting, rather fluctuating a bit.
3) Whenever I plug the charging/data cable (either with charger or, laptop) while booting or, while in recovery it suddenly switches off.
either your battery got badly damaged, or your device got fried.
First, I'd agree on the first commenter and support you taking the device to any android service center to check whether your battery or phone got fried. If it's done and proved nothing is wrong with my battery/phone I'd buy an EDL deep flash cable (I bought one for dirt cheap, 5 dollars) and try to solve my problem via deep flash, edl emergency download mode. There are tons of how to do tutorials on the official Xiaomi forums. Good luck with that, my friend!
I've updated something. Please see it.
How would I use edl if port is not working properly? See the original ques. again. I've updated it.

Dead phone

Hey there. I found a bit old phone in my house, Huawei G730-U10 with MTK6582. Here's problem:
Phone won't turn on at all (no reaction) with battery in and USB out.
With battery in and USB in (connected to charger or PC, no matter what), at first it turns on red led that stays still, and after some time it starts vibrating with interval of about 10 seconds and PC sees it for 2 secs (it connects and after 2 secs - disconnects), then everything repeats. I assume it's bootlooping, but there's no anything on screen (it doesn't even turn on, full darkness). This continues even after taking out USB, only way to stop it - take out battery and place it back.
With battery out and USB in, red led starts blinking with very quiet beeping (very very very quiet).
As you could guess - recovery, fastboot and other things aren't working.
I've checked main board, everything is ok, connected and working fine.
I think there's problem in ROM (not firmware ROM, but ROM that's read-only memory). Something's wrong, maybe there's wrong preloader (or there's no preloader at all), maybe boot partition is damaged, I don't know.
Service center tried to fool me on buying new board for 100$ (althrough it costs 40 on aliexpress), I think they didn't even look at it, so I can't trust them.
I don't need suggestions like "try to flash new rom", you think I didn't try? How is this possible if I can't make PC to see phone for more than 2 secs? Flashtool isn't working even without battery mode.
Do you have any ideas?
Thanks for help.

Old Z2 Tablet SGP512 Given All It's Got?

As the title suggests I have an old Z2 tablet that has been an absolute work horse for many years. I was using it one night and the Android OS prompted me that the device hadn't been rebooted in 28 days. So after I was done using it for the night I rebooted it. Only, it didn't reboot it just stayed off. I tinkered with it for a while and got it to show the Sony logo but then it just went dark again. The device is rooted and I have TWRP on it. So when I got it to turn on again I booted it into the TWRP recovery. I proceeded to clear the cache and also attempted to make a current backup. However, the backup would fail after running for several minutes. I decided to try backing up to an external OTG USB drive but the device needed to be rebooted to detect that the OTG USB drive was attached. So from TWRP I selected "reboot recovery".
Unfortunately that was the last time it worked. The screen will not come at all. When I hold volume+ and power it vibrates 3 times but still doesn't boot. I plugged it into the charger even though the battery charge last showed at 85%, but with the cable connected the charge light doesn't even come on. I tried plugging it into my computer but it doesn't detect the device has been connects and adb devices doesn't show anything in the list.
I read on a forum to try drying it out with a hair dryer and while the device hasn't ever gotten wet it has been humid here so I figured what the heck. Unfortunately that also hasn't resolved the issue.
Pretty much everything I've tried hasn't worked. Even the red reset button under the top panel just causes it to vibrate 3 times.
The device has been in this state for a week now. I was hoping maybe the battery would die and then I could recharge it, but since it still vibrates 3 times I'm guessing the battery still has a charge.
One thought I had is that maybe the internal storage is either dead or corrupted.
At this point I'm wondering if the device is a lost cause and I should just let it rest in peace or if there's any other solution. Even if there was a way to factory reset it from it's current state that would be better than having it be a paper weight.
Any suggestions beyond what I've already tried would be greatly appreciated. And, yes, I may look into seeing if I can get it serviced however there's definitely no warranty and I don't really want to poor money into it since it's probably time for an upgrade anyway.
Why is my phone vibrating 3 times and won't turn on? - Sony Xperia Z5
When I try to turn my phone on it just vibrates 3 times and does nothing after that, just wondering what the problem could be?? - Sony Xperia Z5
www.ifixit.com
The device vibrated 3 times, that's good, then it is off.
"Sony writes: This is how you force the device to turn off:
Press and hold the power button and the volume (+) button simultaneously until the device vibrates three times."
Did you try to put the device into flash mode after that? I think only a complete flash will bring the device back to life.

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