Questions tagged [boot]

Use this tag for issues with the "boot-process" of your Android device.

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What do I do when my Android phone is stuck on a screen saying "select boot mode" but not allowing me to use the volume buttons to select anything?

I have a Cloud Mobile Stratus C7 and the device at first was dead so I plugged it up before powering it on. Once I did, it began showing a screen saying "Select boot mode" with the options ...
help's user avatar
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1 answer
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Primary Zygote (64-bit) only starts the System Services? And all Android apps are 32-bit?

As far as I know Zygote is started by app_process64 and app_process32 where 64 is for primary zygote that starts system services because of start-system-server flag. As we can see below in static void ...
Wei Minn's user avatar
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49 views

How to give an APK higher boot priority?

I have a KernelSU rooted & Xposed/LSPosed enabled Android device running Android 10. Greenify by Oasis APK can detect what receiver trigger the startup of an APK, but when Greenify boot late, it ...
Ahmad Addas's user avatar
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31 views

How to restore stock boot image on uleFone Armor X6 Pro via fastboot?

I have a uleFone Armor X6 Pro on which I intended to install twrp, but made a mistake. Instead of giving the command fastboot flash recovery twrp.img I said fastboot flash boot twrp.img which, I ...
M92lTA's user avatar
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2 votes
0 answers
98 views

Fastboot boot twrp.img just boots back into bootloader

Im trying to boot in to the twrp.img for my Motorola Edge 20 (Berlin) because I can't flash it because my phone doesn't have an own partition for the recovery. fastboot says finished but my phone is ...
Loop's user avatar
  • 21
1 vote
0 answers
53 views

Is it possible to run comand as Termux after boot process?

I have set up a Node.js app. In order to automatically do all the things after the phone boot, I want to make a Magisk module to run a service. The command is npm start and exposes HTTP service on ...
Anas's user avatar
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30 views

Stuck on Recovery Mode 3.0 screen in Redmi Y2 [duplicate]

My Redmi Y2 phone was working fine for long time but suddenly I found that "VOLUME UP" key is not working so I tried to restart the phone but it got stuck into Recovery 3.0 screen. It only ...
ramya's user avatar
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31 views

Samsung Galaxy J1 shuts down after "Optimizing Android" on startup

I have an old Samsung Galaxy J1 20W that when it restarts, it goes to the 'Optimizing Android', and whenever it gets to '13 out of 13', it just shuts down and won't turn on again unless I take out the ...
Hogarth's user avatar
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2k views

Galaxy A51 stuck in ODIN mode after OTA update

Samsung Galaxy A51 received an OTA update last night - installed it, auto-restarted, loaded the Samsung welcome page, then loaded a bright blue screen with: ODIN MODE (AVB fail) SUPER: Build-id does ...
gorilla23's user avatar
1 vote
1 answer
1k views

Samsung Galaxy J1 stuck on "Downloading. Do not turn off target" screen

I have an old Samsung Galaxy J1 that would turn on and then go to a screen with some cogs that said 'Optimizing Android', but whenever it was just about to finish, it would shut down. I got a new ...
Hogarth's user avatar
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211 views

How can I save a Google Pixel 4a stuck during boot?

I got a Google Pixel 4a that is stuck during boot without obvious reason (maybe it did an automatic update and restart during the night). Whenever I start the phone, it only shows the "Google ...
Tylaris's user avatar
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14 views

Persisting "Unfortunately, Keyguard has stopped." error pops on HP Slate 8 Plus

HP Slate 8 Plus displays Unfortunately, Keyguard has stopped. The tablet is somewhat active: it displays in the background the visible WLANs. When I hit OK in the message, it returns immediately. ...
BRX's user avatar
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10 votes
3 answers
2k views

Use fingerprint to unlock the lock screen after booting Pixel 6

Background I am trying to unlock my Google Pixel 6. Due to an accident, I lost much of my memory and in turn, forgot the lock screen PIN code for my phone. I have, however, also activated fingerprint ...
creativecreatorormaybenot's user avatar
1 vote
1 answer
1k views

Infinix Hot 12i can't boot due to dm-verity corruption

My Infinix Hot 12i on Android 11 is having this dm-verity corruption. The phone turned itself off and it can't boot. I tried to flash, but it's saying no command. Nothing is working. The phone can't ...
Tall Vickson's user avatar
2 votes
0 answers
38 views

Stuck in a bootloop after unexpected shutdown

Is there any solution for corrupted /data/system/packages files (packages.xml, packages.list) after a unexpected shutdown, without the need of formatting the entire data partition? My phone ran out of ...
Liliana Araujo's user avatar
0 votes
1 answer
2k views

Samsung Galaxy A32 stuck at 'Phone is starting..."

My Samsung Galaxy A32 restarted itself and now is stuck at this 'Phone is starting...'. I googled ways to resolve this but none work, The last option\resort is to factory wipe, but I have images on ...
Pavle Stojanovic's user avatar
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1k views

How to boot an android TV box from a usb drive containing armbian image

So I have adb access to my android TV box, the device is rooted. I want to install armbian onto emmc. Both official and community tutorial tells me to flash the armbian img onto a usb drive and boot ...
Sam's user avatar
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1 vote
0 answers
120 views

There aren't executable/binaries inside the folder lib/x86 of Magisk-v26.1.apk file

I'm trying to enable KVM for SM-A600G (Samsung Galaxy A6 with exynos7870). I'm following the tutorial by raspiduino: At point 7: Step 7: Download latest Magisk apk and change the .apk extension to ....
Marietto's user avatar
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0 answers
2k views

Repacked modified super.img - can't see new files

I got a Chinese phone with an MTK6761 SoC, running Android 13 (has the virtual A/B partition and DM-verity/AVB enabled). I managed to unlock the bootloader and root it through Magisk and MTKClient ...
Uriel Kaufman's user avatar
2 votes
0 answers
145 views

Samsung J5 stuck in boot-up/switch-off cycle

My Samsung J5, 2017 appears stuck and I'd like to learn whether there is an appropriate button-press sequence. (EDIT #2) EDIT Latest 28th June 2023 I bought and tried a new battery. Unfortunately ...
Puffin's user avatar
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1 vote
0 answers
67 views

Android boot password security

I recently purchased a security solution software for Android (Antivirus + additional security features). Before the installation, my phone started like this: Android logo Password Phone manufacturer ...
user1552545's user avatar
0 votes
1 answer
85 views

My phone stuck on OS boot animation but I can use adb to connect to it, how to fix it without losing data?

I have a Samsung s10e g9700 flashed with Corvus OS gsi (seems based on phh's gsi), which worked basically fine for almost a month. But when I flashed a modified system.img based on Corvus OS gsi, the ...
woyaojizhu8's user avatar
2 votes
1 answer
102 views

With magisk, how to bypass boot-time password input?

I have an phone with magisk and termux installed, and now functions as a mini server at home. Whenever I need to reboot the phone, I need to manually unlock the phone with GUI to get termux running, ...
ccaapton's user avatar
2 votes
0 answers
284 views

User-settable Root of Trust supported devices

As mentioned in Android doc Devices can optionally allow the user to configure the root of trust (for example, a public key). Devices can use this user-settable root of trust for Verified Boot ...
a farahabadi's user avatar
2 votes
0 answers
524 views

Pixel 5 bricked after normal usage

TL;DR: My Pixel 5 won't turn on. Bootloader was never unlocked, therefore it only contains stock software. I think the last update it received was the March 2023 security update. I already talked to ...
soerface's user avatar
  • 121
0 votes
0 answers
257 views

ArrowOS doesnt start, stucks on it's logo

device: Xiaomi Poco X3 (surya) rom: ArrowOS Vanilla 12.1, build date - November 11, 2023 recovery: brigudav's twrp 3.7.0_12-2 latest stable magisk(25.2) magisk modules: lawnchair v12.1.0.Alpha3, ...
noRules's user avatar
  • 11
0 votes
1 answer
259 views

Samsung Galaxy A3 - stuck on empty battery boot screen after total battery drain

So, the battery on my Samsung Galaxy A3 drained completely. Then I plugged in USB cable, and the empty battery logo appeared - and nothing else, to graphics to indicate it was charging: I left the ...
sdaau's user avatar
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1 vote
0 answers
228 views

Android-13 : help with logcat analysis please

logcat does not reveal what might be holding back Android-13 boot, I am not an expert at this. In terms of Software, we have a setup to build Android-12 succesfully for our specific lunch menu & ...
user21034288's user avatar
3 votes
0 answers
30 views

Pixel 3a XL Requires SIM Card Removed/Reinserted to Power On

My wife has a Pixel 3a XL, and in the last 2 weeks it has shut down unexpectedly 3 times, refusing to power back on. The battery is charged, and connecting it to any charger makes no difference. ...
Mike Tompson's user avatar
1 vote
0 answers
74 views

How to fix Samsung Galaxy S3 to boot successfully?

I'm using Samsung Galaxy S3 GT-I9300. Recently, I installed an app and the problem started. The phone started to crash. I had to restart the phone to work but the problem just repeated. But now, when ...
AHDZ's user avatar
  • 21
1 vote
0 answers
653 views

Cannot enable wifi/tcpip adb at boot time in Android 10 - no Allow USB debugging prompt/unauthorized

I have a Lenovo TB_X606F, with stock Android 10. I managed to root the device, and I wanted to be able to have the device listen to port 5555 for adb connections over Wi-Fi, that is TCP/IP, at startup ...
sdaau's user avatar
  • 251
1 vote
1 answer
268 views

Galaxy S10e stuck on boot screen - cannot get into download mode or recovery

I have Galaxy S10e (beyond0lte), which had crDroid 11 installed. I flashed the latest stock firmware, then TWRP 3.7.0.0 patched with Magisk 25.0 using Odin and was able to get into TWRP. In TWRP I ...
EM0's user avatar
  • 173
1 vote
0 answers
147 views

Custom init rc constantly failing/rebooting

I created a custom .rc file (/etc/init/nerding.rc) which initializes a custom "service" I made (/system/bin/listen) at boot, but after an hour or so my Android gets sluggish, isn't very ...
Mikey Mill's user avatar
1 vote
0 answers
33 views

Is the code that detects phantom button presses part of Android

On one of my Samsung Tablets this morning, after signing in, the device would go to the lock screen after a second or so. If I was quick, I could then press and hold the power button (intending to ...
Rohit Gupta's user avatar
  • 1,535
1 vote
0 answers
44 views

Can I send start command to my android phone in linux using serial command

I can't use my phone's start button, it's non-functional and in shutdown state.similar problem but can't access battery Can I send start command using Linux USB serial communication for this? If it's ...
maxemilian's user avatar
1 vote
0 answers
6k views

Disable signature verify in android default bootloader for zip files

I have a J7 elte. When I want to sideload a zip file with adb from the phone's default boot loader the bootloader raises error Signature Verification Failed whole-file. How can I disable this ...
Reza Hosseinzadeh's user avatar
0 votes
1 answer
1k views

How to flash boot partition from the phone itself?

I already have Magisk installed by patching boot_b — the current boot partition. Therefore I have root privilege and can access it through the su command in Termux. The issue is that when I update ...
Maksym Hazevych's user avatar
1 vote
1 answer
968 views

Force boot to bootloader (device always boots to recovery)

I was trying to flash TWRP onto my Android tablet (Lenovo TB-X306F), but something went wrong and it failed. Now, every time I boot, no matter what I do (sending adb commands or pressing physical ...
Tmpod's user avatar
  • 41
1 vote
0 answers
2k views

How to enable ethernet tethering via shell (android 12) [for a start-up script]

I've read numerous threads on doing it with USB Tethering, and I feel confident I could do that. However, I need it for ethernet. I can use Magisk + shell script at /data/adb/service.d. Any other ...
mwk's user avatar
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0 votes
0 answers
123 views

Create boot.img from compiled kernel

I am trying to install Magisk on a RePhone. The only operating system related download I found (on the company's website or anywhere else) is this: https://myrephone.com/opensource.7z That seems to be ...
Fabian Röling's user avatar
1 vote
0 answers
189 views

The first few scripts at Android boot-up

What are the first scripts executed by the Android boot-up process before it starts running processes that do not have root privileges?
Tempus Nomen's user avatar
0 votes
0 answers
67 views

Choosing correct OTA

Android OS crashed. Error Message Android Recovery TCL/REVL_2_5052w/A30ATMO 8.1.0/OPM1.171019.011/VAR4A-0 user/release-keys Think that means 8.1.0 = Oreo API level 27 https://developers.google.com/...
lfad's user avatar
  • 1
1 vote
0 answers
301 views

POCO M3 Pro 5g not booting up after unexpected shutdown. It does not charge as well

I was using my phone scrolling on Facebook then it suddenly shuts down. After that I tried to boot it but after holding the power button for 15 secs It shows that its out of battery. but I know my ...
NotPat's user avatar
  • 11
2 votes
1 answer
977 views

TWRP boot freeze (Pixel 5)

I'm trying to install TWRP for the first time on my Pixel 5. I followed the instructions on https://twrp.me/google/googlepixel5.html, downloaded the latest image and bootet it with: PS C:\platform-...
freshCroissant's user avatar
1 vote
1 answer
2k views

Pixel 3 stuck in fastboot loop after flashing factory image

The problem After trying to flash a factory image of Android to my (previously working) Pixel 3, I can now no longer exit the bootloader, nor can I boot into the system. The bootloader simply reads no ...
Chris Nemarich's user avatar
0 votes
0 answers
30 views

Halp...soft-bricked A40 after uninstalling apps ADB [duplicate]

I may have just messed up my smartphone and really need your help. I wanted to get rid of some of the bloatware on my A40 and read online that one can actually uninstall many apps via the Windows ...
srhslvmn's user avatar
  • 252
0 votes
0 answers
577 views

Samsung Galaxy AO1 (SM-S111DL) stuck in download mode, boot verify image load failed

How do I get past download mode (boot verify image load failed) on Samsung A01 (SM-S111D)?
Crystal Brown's user avatar
1 vote
0 answers
349 views

unable to boot new kernel with kexec on android

As an alternative to pstore (pstore/ramoops won't work on Poco M3, rooted), I'm trying to boot another kernel into my already booted android kernel, to maybe see the kernel logs on boot, using ...
Rafaelo's user avatar
  • 71
2 votes
0 answers
262 views

pstore/ramoops won't work on Poco M3, rooted

I'm trying to use pstore logs on my Poco M3. I tried everything. PSTORE configs are activated on the kernel, pstore module is loaded on the phone, phone is rooted, /sys/fs/pstore is mounted ...
Rafaelo's user avatar
  • 71
1 vote
0 answers
271 views

Can't unlock my Acer B3-A30 tablet's bootloader

So I have an Acer Acer B3-A30 tablet, which is stuck on the Acer logo. I'm trying to unlock it's bootloader (with fastboot mode), so I can reflash it (with a stock rom), but it just shows an error ...
3060PlayZ's user avatar
  • 155

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