Samsung Galaxy S8+ Stuck In Bootloop After Rooting

The #Samsung #Galaxy #S8+ is the larger version of the two flagship devices released by the South Korean company last year. Despite the fact that the phone uses a 6.2 inch Super AMOLED display it is still quite compact as the phone is almost bezeless due to the absence of the physical home button which in turn allows for a larger display to be placed on a compact frame. This device uses the Snapdragon 835 processor paired with 4GB of RAM to provide a smooth user experience. Although this is a solid performing phone there are instances when certain issues can occur which we will be addressing today. In this latest installment of our troubleshooting series we will tackle the Galaxy S8+ stuck in bootloop after rooting issue and other related problems.

If you own a Samsung Galaxy S8+ or any other Android device for that matter then feel free to contact us using this form. We will be more than happy to assist you with any concern that you may have with your device. This is a free service we are offering with no strings attached. We however ask that when you do contact us try to be as detailed as possible so that an accurate assessment can be made and the correct solution can be given.  

If you would like to browse the previous parts in this series then check out this link.  

S8+ Stuck In Bootloop After Rooting

Problem: I have a Samsung S7 Edge that I got from the US but it had Verizon bloatware on it so I tried to root it by following online tutorial. Everything seemed to go well but now my phone is stuck in a boot loop and won’t go beyond the initial Samsung boot screen, not as far as the Samsung animation, just the “SAMSUNG Galaxy S8+ ” boot screen coming up (this screen also displays the unlocked padlock with the word “Custom” under that and “POWERED BY android” at the bottom of the screen, then off and then on again with a vibration happening every other time the above flashes on the screen. I should not that this only flashes on for a second or two then off for a second or two and repeat… I can still get it into the Android Recovery screen by holding the Home button and the Volume Up buttons at the same time this comes up and looks normal except at the bottom of this screen in red text is “dm-verity verification failed…” From the Android Recovery screen I’ve tried the various functions but the outcome is the same, the constant boot loop but here’s the breakdown of what happens: Reboot system now = boot loop noted above Reboot to boot logger = “Downloading… Do not turn off target” screen Apply update from ADB = bottom of screen under red text: “Update from external storage is disabled” Apply update from SD card = bottom of screen under red text: “Update from external storage is disabled” wipe data/factory reset = bottom of screen:      — Wiping data… Formatting /data… Formatting /cache… — Set Factory Reset done… — Copying media files… — preload checkin… Data wipe complete. wipe cache partition = bottom of screen: — Wiping cache… Formatting /cache… Cache wipe complete… Cache wipe complete… Mount /system = = bottom of screen: Mounted /system. View recovery logs = blue screen with android icon on it comes up with “installing system update” underneath then back to Android Recovery screen Power off = blue screen with android icon on it comes up with “installing system update” underneath then back to Android Recovery screen I can also get it to the “Downloading…” screen by holding down the Home button and the Volume Down button. This starts with the “Warning” screen and when I chose the “Volume up” button to “Continue” it takes me to the “Downloading… Do not turn off target” screen. In the top left corner of this screen it displays the following: ODIN MODE (HIGH SPEED) PRODUCT NAME: G955V CURRENT BINARY: Samsung Official SYSTEM STATUS: Custom FRP LOCK: OFF QUALCOMM SECUREBOOT: ENABLE RP SWREV: B2(2, 1, 1, 1, 1) K1 S1 SECURE DOWNLOAD : ENABLE I also got to the Maintenance Boot Mode screen once but not exactly sure how?.. I thought I was holding the Volume Down, Home and Power buttons at the same time from the “Downloading…” screen but haven’t been able to replicate that? The Maintenance Boot Mode screen displayed the following options:      ( ) 1. Normal Boot : Restart your phone normally. ( ) 2. Factory Reset : Warning!, Erases all data and applications. ( ) 3. Safe Mode : Temporary disable third party application. ( ) 4. Power down : Turn off your phone. ( ) 5. USB Debug Mode : Turn on USB debugging option under Developer options. As I only got to this screen once I tried the Safe Mode option and that just went back to the boot loop noted above. Not sure the other options would have accomplished anything? Any help with this would be greatly appreciated!

Solution: If your phone has a microSD card installed then I suggest that you remove it first then do a soft reset. This is done by pressing and holding both power and volume down buttons for at least 10 seconds. Your phone should restart after this. In case the bootloop issue still occurs then perform the steps listed below.

  • Wipe the cache partition of the phone from the recovery mode.
  • Start the phone in recovery mode then do a factory reset. Take note that this will erase your phone data.

If the problem persists then you should consider flashing your phone with an updated stock firmware file to eliminate the possibility of this problem being caused by a corrupt software. You can get the firmware file as well as the instructions on how to flash your phone at the Sammobile website.

If the above steps fails to fix the problem then you need to bring your phone to a service center and have it checked.

S8+ Moisture Detected Error

Problem: Hey droidguy.com, I own an Galaxy S8+ and was experiencing the same “moisture in the charging port” error similar to those detailed on your website. My phone has been bone dry for weeks, the moisture indicator by the SIM slot is still stark white, and I’ve never given it a water dunking, so I was fairly confident it was not water damage. The problem has been fixed after calling samsung support at (1-800-726-7864) and following the specific steps: restart phone in recovery menu, wipe the cache partition, start phone, plug in charger, receive moisture error, leave charger plugged in, restart phone, then remove charger cord, blow into charge port, and plug charger back in. The error did not come back. I am not sure if samsung support modified any values on the phone remotely, they did ask for all the information on the phone including IMEI. In any case, it does seem to be some over-aggressive software/firmware settings that can be fixed or recalibrated by the preceding steps. Hopefully this info helps future users

Solution: Sometimes this error will occur even if the charging port of the phone is dry. When this happens it’s very likely caused by a software glitch which can be fixed by following the steps you performed. Thanks for sharing this information.

S8+ Not Recognized By Computer

Problem: Hi guys,  Actually Im suffering from my bad device (Samsung S8+) Suddenly I faced that the fast charging not working without clear reason!! And the PC can’t recognize the device by using USB cable, to backup my data.   I went to someone who can solve it, he said maybe u need to change the USB Base, We changed it but the problem still their. Any way, Samsung company told me my device needs something like reset the full software to the device, But in this case I’ll lose my data, and I dont have another way to move all of my data to pc.  So do u have any suggestion I can solve the problem or transfer my data to do the software ?! Thanks a lot

Solution: If you have already replaced the charging port of the phone and your device still can’t be recognized by the computer then try the following steps.

  • Try using a different USB cord.
  • Try connecting the phone to a different USB port.
  • Try connecting the phone to a different computer.

In case your phone can’t be detected then you will need to have this checked at a service center.

Regarding the issue of retrieving your phone data you can install a cloud service app on your phone so that you can just upload your phone data to your cloud account.