H830 bootloop please help - T-Mobile LG G5 Questions & Answers

i use magisk module and ,y phone cant boot normally. bootloop on t-mobile screen. how i can enter twrp?

You enter Twrp the same way you enter the stock recovery. With phone off press and hold the power and volume down button. As soon as the first screen pops up (i believe its the lg logo) continue holding volume down but quickly release power button and then repress and hold it down again. Then follow the prompts click yes to wipe phone, instead of wiping the phone it'll put you into TWRP.
---------- Post added at 10:13 AM ---------- Previous post was at 10:09 AM ----------
Some Magisk modules are only for certain phones or OS. I had the same problem after installing a module that was supposed to help the gpu. The dev didnt say it was for a specific phone or OS, but i assume that it was. Always make sure to read the notes of the module.

Related

rooted but can't get to custom recovery

I have had my tf101 for sometime and I rooted it very early but every time I try to get a custom recovery installed it never seems to work.
I have checked that I am rooted and its a fact. When I tried installing CWM recovery it appears that it installs but when I hold down the volume down and power button I get the normal boot and not booted into recovery.
If I use terminal to SU and then REBOOT RECOVERY the same thing happens, it boots to the normal android.
I currently have 4.0.3 installed. I can use several apks that require root and they all work fine.
I need some direction.....Thanks in advance.
When you hold VOL DOWN and POWER for 12-15 seconds, there is some white text that appears that says PRESS VOL UP to enter RCK. Did you release and tap VOL UP at this point?
Also, what method did you use to install the recovery? Please tell me you did not use ROM Manager. If you did, please do NOT use it. See HERE for the reason why.
---------- Post added at 11:17 PM ---------- Previous post was at 11:08 PM ----------
When you hold VOL DOWN and POWER for 12-15 seconds, there is some white text that appears that says PRESS VOL UP to enter RCK. Did you release and tap VOL UP at this point?
Also, what method did you use to install the recovery? Please tell me you did not use ROM Manager. If you did, please do NOT use it. See HERE for the reason why.
frederuco said:
When you hold VOL DOWN and POWER for 12-15 seconds, there is some white text that appears that says PRESS VOL UP to enter RCK. Did you release and tap VOL UP at this point?
Also, what method did you use to install the recovery? Please tell me you did not use ROM Manager. If you did, please do NOT use it. See HERE for the reason why.
---------- Post added at 11:17 PM ---------- Previous post was at 11:08 PM ----------
When you hold VOL DOWN and POWER for 12-15 seconds, there is some white text that appears that says PRESS VOL UP to enter RCK. Did you release and tap VOL UP at this point?
Also, what method did you use to install the recovery? Please tell me you did not use ROM Manager. If you did, please do NOT use it. See HERE for the reason why.
Click to expand...
Click to collapse
I don't think I was waiting long enough.
Thanks for your help I now have TWRP installed and am in the process of installing KatKis 4.3. New life for my TF101

"Unbrick" your phone, easy.(Wiped OS with TWRP) Stuck on Huawei Logo help

Hello Guys,
since i saw a a bunch of posts with: "Help stucked on bootlogo" , "wiped OS", etc. ,
and i've done it by my selfe ^^ ,
I found the answer, so you need a working TWRP, and a SD-Card with a good /dload folder.
Go to the TWRP with power on key and at the same time vol + (up).
Now go to Reboot and Bootloader
now you flash the standard recovery.
Like you flashed the TWRP just with the restoration Recovery.img .
All you need is inside of this link provided by Hirs_E_Fruit from his Root Guide.
If you have finaly done flashing the stock recovery you can shutdown your phone and start it with power key + vol+ and vol-
all three at the same time for a solid amout of time idk about 8 sek or so i normaly release the power key after 5 seconds +-.
yea then you should see a blue circle a usb plug in middel of it and some chinese writing.
Hope this will help someone
Have Fun and Good Luck
Gadlion
not worked for me..
I can see blue circle... It will go till 90% but pausing...
in fastboot white screen It
still softbricked...
---------- Post added at 10:02 AM ---------- Previous post was at 09:50 AM ----------
How can I find and install TWRP while my phone is softbricked? Please provide some article
help????????
Gamexland said:
help????????
Click to expand...
Click to collapse
My phone logo is not only turned on DAV-701L

S6 Bootloop, No OS, No Home Button.

Hi,
I have an SGS6, SM-G920I, I have the phone for about a month with Android 6.0.1 on it, rooted with CF-Auto-Root. About 2 days ago, I decided to unroot the phone because I never used an app that need it, so, I did it from SuperSu app, after that, the phone keeps in bootloop.
I want to flash a stock rom, I already download it and odin 3.11, I dont care about pictures or anything else, but, my problem is that home button isnĀ“t working, so, if I press vol down + home + power, it only recognize vol down + power, and because of that I cant pass the warning screen, neither vol up nor vol down works.
Is there any other way to pass the warning screen in download mode, I can only boot in recovery but non option allows me to flash rom.
Thanks in advance..
Yes. Just need just domaged usb cable. And make like this yourself.
https://www.google.ge/search?q=sams...J8KvRAhXNO1AKHd_OCLYQ_AUIBygB&biw=360&bih=559
---------- Post added at 09:51 PM ---------- Previous post was at 09:48 PM ----------
Also recovery is option, boot into bootloader. It is download mode. Meaby it works for you.
Gonna try this, thanks for answer.
Access Download Mode from Recovery is not working, already try that, but phone keeps stuck in bootloop, thats weird but it happens since I have the phone

[Guide] RCA Voyager RCT6873W42 Unlock Boot loader and root

Root has been achieved for rca tablet, With the intel atom chip
Basic steps are Just like many android devices.
1. Unlock boot loader
2. Flash modified stock recovery
3. Test boot a permissive boot.img
4. Flash permissive boot.img (if test boot was ok)
5. Boot into Custom recovery and flash superSu.
The modified recovery has adb active. This is needed to get back into bootloader mode if flashing goes wrong.
Because on the RCA tablet there is no button combination for bootloader boot mode.
Steps that the included tool performs:
First step tool does is ask soc type. (intel or MTK) for this guide it needs to be intel.
1. Guides user through the bootloader unlock steps.
adb reboot fastboot
verifies the status of unlocked or not
verifies the ability to do unlock in not already unlocked
fastboot flashing unlock
fastboot format userdata
fastboot format cache
fastboot reboot
2. Fastboot boot generic CWM recovery. To use its root shell for copying devices boot.img and recovery.img
3. Use Carliv Android Image kitchen tools to unpack the pulled boot.img and recovery.img
RECOVERY
4. copy adbkey.pub from pc running the patch to stock-recovery\ramdisk\data\misc\adb\adb_keys
copy adbkey.pub from pc running the patch to stock-recovery\ramdisk\adb_keys
this s done to ensure an authorized adb connection to device even after factory reset and data format
5. Edit recovery\ramdisk\default.prop as follows:
"ro.secure=1" to "ro.secure=0"
"ro.debuggable=0" to "ro.debuggable=1"
"persist.sys.usb.config=mtp" "persist.sys.usb.config=mtp,adb"
add line: persist.service.adb.enable=1
add line: persist.service.debuggable=1
6. Use Carliv Android Image kitchen tools to re-pack recovery
BOOT
7. copy adbkey.pub from pc running the patch to stock-boot\ramdisk\data\misc\adb\adb_keys
copy adbkey.pub from pc running the patch to stock-boot\ramdisk\adb_keys
this s done to ensure an authorized adb connection to device even after factory reset and data format
8. Edit boot\ramdisk\default.prop as follows:
"ro.secure=1" to "ro.secure=0"
"ro.debuggable=0" to "ro.debuggable=1"
"persist.sys.usb.config=mtp" "persist.sys.usb.config=mtp,adb"
add line: persist.service.adb.enable=1
add line: persist.service.debuggable=1
9. Edit boot\ramdisk\*fstab* as follows:
"forceencrypt" to "encryptable"
10. Add these lines to boot/ramdisk/init.rc after the line that starts: "on init"
# root use Permissive
write /sys/fs/selinux/enforce 0
11. Swap sepolicy and /sbin/adbd with permissive (insecure) versions included in tool "/img" folder
12. Use Carliv Android Image kitchen tools to re-pack boot
CWM
13. Use Carliv Android Image kitchen tools to unpack the generic CWM
14. copy stock-recovery\recovery.img-kernel to unpacked generic CWM folder (replacing file that is there)
copy stock-recovery\recovery.img-second to unpacked generic CWM folder (replacing file that is there)
15. Use Carliv Android Image kitchen tools to re-pack CWM
SECOND / FLASH MENU
16. fastboot boot patched boot.img
used to verify patched image does not cause device to brick
17. fastboot flash boot patched-boot.img
flashes patched-boot (user must have verified boot image works in previous step)
then formats /data to remove encryption
18. fastboot flash recovery patched-recovery
stock recovery does not seem to work when booted, so test booting pached image not done
this modified recovery is needed to be able to get back to bootloader mode if trouble occurs.
19. Load patched CWM
loads patched recovery to be used to flash SuperSu and also to make device "back-ups"
Updated 2-4-2018 Multi-platform-patch-tool
==>>Multi-platform-patch-tool
Downloads Needed:
Download adb=fastboot 15 second instal == https://forum.xda-developers.com/showthread.php?t=2588979
Download intel drivers == https://software.intel.com/en-us/protected-download/385047/494732
Download SuperSu.zip == https://forum.xda-developers.com/apps/supersu/v2-64-2-66-supersu-mode-t3286120
Thanks:
@vampirefo for most of the needed parts to make this work. CWM, permissive su-policy, without that this would not be possible
@bluefirebird For the image unpack tool
Youtube video I found , of someone explaining how he used the files to root his device.
Video is from before patch tool written. Video was from when individual build files were available.
New method of patching individual device files , removes possibility of flashing files from wrong device.
History of this root method started in this thread.
https://forum.xda-developers.com/general/help/rca-voyager-rct6873w42-rooting-help-t3485625
Tablet hangs on bootloader unlock screen due to the volume keys not responding. Also, on first connect with fastboot flashing unlock, tablet responds with power key every time unless unplugged from usb. Upon second attempt, the power button key issue stops, but the volume keys do not function on the bootloader unlock screen.
Grishak said:
Tablet hangs on bootloader unlock screen due to the volume keys not responding. Also, on first connect with fastboot flashing unlock, tablet responds with power key every time unless unplugged from usb. Upon second attempt, the power button key issue stops, but the volume keys do not function on the bootloader unlock screen.
Click to expand...
Click to collapse
Are you using this with correct drivers?
And with working voyager tablet, with an Intel soc. This does not work with an m version tablet(mtk soc)
I never had problems with volume key not recognized
It's the RCT6873W42 with the Intel Atom. I'll check the drivers, but it reads the power button, just not the volume buttons.
---------- Post added at 04:45 PM ---------- Previous post was at 04:28 PM ----------
I have verified driver installation. Fastboot will not recognize volume up or down. Power button is the only one registering a key event. (4) EV_POWER received.
Grishak said:
It's the RCT6873W42 with the Intel Atom. I'll check the drivers, but it reads the power button, just not the volume buttons.
---------- Post added at 04:45 PM ---------- Previous post was at 04:28 PM ----------
I have verified driver installation. Fastboot will not recognize volume up or down. Power button is the only one registering a key event. (4) EV_POWER received.
Click to expand...
Click to collapse
What about the allow OEM unlock toggle in the developer options screen?
I do not know how to verify key presses as you refer to.
So cannot compare on my end.
There may be different versions released with same model number.
I will make note in the op with the model and build number of my tablet, and can also include a link to the thread where the boot.img was built and tested.
But your problem seems to be before you can even get to that point.
OEM Unlock is enabled. This is my fourth android root, I have yet to ever run into an issue with the volume keys not registering during fastboot. The confirmation screen to unlock the bootloader is visible, but I am unable to select yes or no. The only button that functions is the power key, it times out after 70 seconds. Perhaps if there were a way to extend that timeout period, the volume keys could function. I have attempted removing the usb cable after initiating the flash unlock command, also plugging it into an alternative charger, removed and entered headphones to trigger the volume control. I turned up a search on an individual that had an issue with RCA not programming the volume keys into the Bootloader Unlock screen. Different model, but that was the only thing I managed to find. Strange.
Grishak said:
OEM Unlock is enabled. This is my fourth android root, I have yet to ever run into an issue with the volume keys not registering during fastboot. The confirmation screen to unlock the bootloader is visible, but I am unable to select yes or no. The only button that functions is the power key, it times out after 70 seconds. Perhaps if there were a way to extend that timeout period, the volume keys could function. I have attempted removing the usb cable after initiating the flash unlock command, also plugging it into an alternative charger, removed and entered headphones to trigger the volume control. I turned up a search on an individual that had an issue with RCA not programming the volume keys into the Bootloader Unlock screen. Different model, but that was the only thing I managed to find. Strange.
Click to expand...
Click to collapse
I did see that same issue with an earlier release on an rca tablet.
My build number is :
RCT6873W42-ANDROID6.0-V19-V1.16.50-E04
Kernel:
3.14.0+
Patch level:
June 1, 2016
Also the directions I had when unlocking was to hold volume up button before giving the "fastboot flashing unlock" command to avoid a timing problem.
I did not have the problem either way.
https://forum.xda-developers.com/android/general/firmware-rca-viking-pro-rct6303w87dk-t3325158
That RCA Viking Pro tablet, that was the reference to the volume keys not being programmed.
---------- Post added at 10:34 PM ---------- Previous post was at 10:01 PM ----------
Android Version: 6.0.1
Kernel Version: 3.14.0 Aug 22 19:31:40 CST 2016
Build number: RCT6873w42-ANDROID6.0-V31-V1.17.70-W01
Patch Level: June 1, 2016
I had a dream that it was an SD card holding me back. Sure enough, there was an SD card installed in the tablet which was preventing me from unlocking the bootloader. So as of now, it is unlocked and I will proceed with your directions and post an update shortly.
After flashing the modified boot file on step B, my tablet screen is black with the backlight. I can not interact with the tablet except for volume down disconnecting the device and turning the backlight off. Also
error: device unauthorized.
This adbd's $ADB_VENDOR_KEYS is not set;
So basically if the authorization for ADB is gone AND my screen is gone...
I have the RCA Voyager RCT6973W43 will this work on it
Wphall said:
I have the RCA Voyager RCT6973W43 will this work on it
Click to expand...
Click to collapse
Well I have the same model, my screen is now useless after unlocking the bootloader and flashing the first image. Am now searching for a new tablet. The issue immediately began right after rebooting from the successful flashing. Black screen, android set up the os and configured itself, screen still inactive. Debug is disabled now and I have no way to access the tablet via ADB/fastboot now. Out of ideas.
Update
After attempting to blindly access recovery *nothing will display on screen* and I have learned that my volume down button shuts off the screen and disconnects the tablet from my pc for a moment. Also I am positive the touch screen is no longer active, windows picks up the tablet as a storage device. I am thinking that it is the end of for this tablet.
Grishak said:
Well I have the same model, my screen is now useless after unlocking the bootloader and flashing the first image. Am now searching for a new tablet. The issue immediately began right after rebooting from the successful flashing. Black screen, android set up the os and configured itself, screen still inactive. Debug is disabled now and I have no way to access the tablet via ADB/fastboot now. Out of ideas.
Update
After attempting to blindly access recovery *nothing will display on screen* and I have learned that my volume down button shuts off the screen and disconnects the tablet from my pc for a moment. Also I am positive the touch screen is no longer active, windows picks up the tablet as a storage device. I am thinking that it is the end of for this tablet.
Click to expand...
Click to collapse
;;
That is unfortunate. I would have expected you to stop when knew the build numbers and kernel versions were different.
recovery has nothing to do with the boot.img, so your stock recovery should still be there. From powered off hold volume button closer to the usb cable, and the power button for about 10 seconds. the wait for the warning screen to count down. (30 seconds)
should be at recovery.
Do you have the bootloader untrusted screen after unlocking.?
What do you mean "android set up the os and configured itself" ?
did you do the userdata format? that is needed to decrypt the tablet. as the /data area from factory is force-encrypted.
Basically after unlocking the bootloader and flashing the first image... my tablet screen has been rendered useless. It is completely unusable and all of this happened before you posted the version number.
---------- Post added at 12:28 PM ---------- Previous post was at 12:26 PM ----------
I followed all instructions described up to the end of Step B. Upon completion of step B, my tablet screen has been rendered useless. Either it conveniently died at the worst time, or something during the flashing caused it. Either way, I have removed the battery, checked connections and can't find anything. Backlight, black screen. 24/7 can't get anything else to display. Can't do a thing with it.
---------- Post added at 12:32 PM ---------- Previous post was at 12:28 PM ----------
Well, I hope this brick helps others not make the same mistake, LOL!
I picked up the tablet for $20 months ago and have been waiting for a root.
Now it's dead so I guess it's time for a better tablet until this one is on sale again!
Wphall said:
I have the RCA Voyager RCT6973W43 will this work on it
Click to expand...
Click to collapse
No, this root is device specific.
Sent from my Life_Max using Tapatalk
---------- Post added at 08:50 AM ---------- Previous post was at 08:49 AM ----------
Grishak said:
Basically after unlocking the bootloader and flashing the first image... my tablet screen has been rendered useless. It is completely unusable and all of this happened before you posted the version number.
---------- Post added at 12:28 PM ---------- Previous post was at 12:26 PM ----------
I followed all instructions described up to the end of Step B. Upon completion of step B, my tablet screen has been rendered useless. Either it conveniently died at the worst time, or something during the flashing caused it. Either way, I have removed the battery, checked connections and can't find anything. Backlight, black screen. 24/7 can't get anything else to display. Can't do a thing with it.
---------- Post added at 12:32 PM ---------- Previous post was at 12:28 PM ----------
Well, I hope this brick helps others not make the same mistake, LOL!
I picked up the tablet for $20 months ago and have been waiting for a root.
Now it's dead so I guess it's time for a better tablet until this one is on sale again!
Click to expand...
Click to collapse
Bricking your tablet would be the expected outcome, as this root was never ever meant for your tablet.
Sent from my Life_Max using Tapatalk
Looks like I'll have a nice battery and screen for a raspberry pi.
vampirefo said:
No, this root is device specific.
Sent from my Life_Max using Tapatalk
---------- Post added at 08:50 AM ---------- Previous post was at 08:49 AM ----------
Bricking your tablet would be the expected outcome, as this root was never ever meant for your tablet.
Sent from my Life_Max using Tapatalk
Click to expand...
Click to collapse
I was rooting my tablet from "out of the box" according to the directions, and everything was fine up until the same point. After flashing the modified boot img, formatting userdata and cache, and issuing the fastboot reboot command, now all I get is a backlit screen. Volume down does turn the screen black for a moment then lights back up. The pc sees it as a flash drive, but adb devices doesn't see it at all (not even as an unauthorized device).
My tablet is the correct model. RCT6873W42
I haven't figured out how to get into the recovery. Holding volume up + power, etc doesn't do anything.
---------- Post added at 09:33 AM ---------- Previous post was at 09:17 AM ----------
Grishak said:
Looks like I'll have a nice battery and screen for a raspberry pi.
Click to expand...
Click to collapse
I'm having the identical problem on the identical step you did, and I have the correct model/version.
icaruspony said:
I was rooting my tablet from "out of the box" according to the directions, and everything was fine up until the same point. After flashing the modified boot img, formatting userdata and cache, and issuing the fastboot reboot command, now all I get is a backlit screen. Volume down does turn the screen black for a moment then lights back up. The pc sees it as a flash drive, but adb devices doesn't see it at all (not even as an unauthorized device).
My tablet is the correct model. RCT6873W42
I haven't figured out how to get into the recovery. Holding volume up + power, etc doesn't do anything.
---------- Post added at 09:33 AM ---------- Previous post was at 09:17 AM ----------
I'm having the identical problem on the identical step you did, and I have the correct model/version.
Click to expand...
Click to collapse
All I can think to do at this point is to add an md5 to verify the files downloaded are the ones intended to be used.
It would seem before people try to root their device they should first know and be able to get into recovery before they attempt to root.
If you can't get into recovery via hardware keys, there is no point to continue trying to root your device until you figure that part out.
I don't have the exact tablet in this thread, Mine is close enough though.
to get into my recovery.
press and hold volume down and power until splash screen pops up, I get a splash screen just before count down screen, release and when 30 second count down finishes tablet boots into recovery.
vampirefo said:
It would seem before people try to root their device they should first know and be able to get into recovery before they attempt to root.
If you can't get into recovery via hardware keys, there is no point to continue trying to root your device until you figure that part out.
I don't have the exact tablet in this thread, Mine is close enough though.
to get into my recovery.
press and hold volume down and power until splash screen pops up, I get a splash screen just before count down screen, release and when 30 second count down finishes tablet boots into recovery.
Click to expand...
Click to collapse
I have 49 more of these tablets, still in their boxes, to test with.

S8 plus G955F won't boot after switch\odin

Hello guys!
Two days ago I was punched by a problem with my g955f: I bought it from my friend, I wiped it completely and I wanted to update it via Smart switch.I flashed the stock firmware with switch, the process was 100% succeded and then the phone tryed to boot up but everytime he pass the first screen with s8 plus galaxy text, he arrives at the second bootlogo with just the samsung text and then he restart itself continuously.
I flashed also a firmware with odin..I fully charged the phone and then tryed again with Smart Switch but the same problem still persist.I don't know what else I can do, I have no warranty because the back pannel is broken so what else I can do by myself? Anyone has been met with this strange problem?
Thank you guys !
You tried installing twrp with odin
---------- Post added at 05:21 PM ---------- Previous post was at 05:13 PM ----------
However there are all the directions on YouTube, try to see that you find, I also had this problem but I only tried with Odin. You have to download the right firmware for both the model and the nation, following the directions with Odin you should succeed.
Hello, thank you for your reply !
I already tried with the right firmware by searching it after csc and pda, I tried with anything else, I tried with smart switch but everytime the flashing process ends up successfull but the phone is continuously restarting, not even a first boot..
hello
is it fully charged?
Hello,
Yes it is fully charged and he keep restarting until he drains the entire battery
Have you tried installing twrp with odin? Or is twrp already installed?
I tried to install twrp and then flash a custom rom.Everything went succesfully(the flash process) but when the phone tried to boot up for the first time it went in the infinitly restart..
I mention that I choosed the corect twrp for my g955f.
There is only one way to start in twrp. Hold down the volume button - and power, the screen shuts off for 2 or 3 seconds, then you have to press volume + bixby and power at the same time until twrp appears. Then install it as by procedure. I did this and it works
---------- Post added at 01:17 PM ---------- Previous post was at 01:15 PM ----------
You must be fast to press before it comes back on
---------- Post added at 01:20 PM ---------- Previous post was at 01:17 PM ----------
There is only one way to start in twrp. Hold down the volume button - and power, the screen shuts off for 2 or 3 seconds, within that 2 or 3 seconds you have to press + bixby + power at the same time until the twrp is displayed. Then install it as per procedure. I did this and it works
---------- Post added at 01:22 PM ---------- Previous post was at 01:20 PM ----------
There is only one way to start in twrp. Hold down the volume button - and power, the screen shuts off for 2 or 3 seconds, within that 2 or 3 seconds you have to press + bixby end power at the same time until the twrp is displayed. Then install it as per procedure. I did this and it works
---------- Post added at 01:25 PM ---------- Previous post was at 01:22 PM ----------
There is only one way to start in twrp. Hold down the volume button - and power, the screen shuts off for 2 or 3 seconds, within that 2 or 3 seconds you have to press + bixby and power at the same time until the twrp is displayed. Then install it as per procedure. I did this and it works
zuzulic said:
I tried to install twrp and then flash a custom rom.Everything went succesfully(the flash process) but when the phone tried to boot up for the first time it went in the infinitly restart..
I mention that I choosed the corect twrp for my g955f.
Click to expand...
Click to collapse
if you have no guarantee...
you can try a combination file and see if it can boot
just ask google for one for g955f
I tried with the combination file one day ago..but I ended up into a screen like "KERNEL PANIC MODE" .He is entering in this screen when he's trying to boot up.
HELP HELP
hello, I saw your post on the problem that you had with your galaxy s8 after flashing it, I had the same problem and I need a solution if you have found on plaise help me
at the beginning I had a problem with the bootload after having made the last update, my phone reboot constantly (bootloops), then I flashed it with Odin, and I get another problem, after the flash the systems update stops at 32% ===== erasing then it restarts again, I even tried the PIT flash method it does not work

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