Questions tagged [boot]

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

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Unable to have applications run on startup Android 7.0

I can't seem to get any applications to start at boot. I wanted sshd to run at startup so I installed "Termux", "Termux:Api" and "Termux:Boot" and followed the instructions and placed the startup ...
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1answer
11 views

Apps suddenly stopped starting automatically when my phone boots

I have two apps that I expect to start when I boot my phone: AccuBattery and Weatherbug. A few months ago though, Weatherbug stopped starting automatically, and AccuBattery stopped a couple days ago. ...
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14 views

Nexus 7 not booting past google screen

I tried to factory reset my Nexus 7 this morning and it took 4+ hours, it stayed on the "erasing" screen so I got bored and turned it off, I figured no factory reset takes that long. Now when I try to ...
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1answer
40 views

E: can't mount/cache/recovery/log on Android Lenovo a1000

I have a problem on starting my lenovo a1000 , so i decided to install firmware on it. I tried too much, but every time the phone fishing flashing , and 100% passed with spd factory flashing tool , ...
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0answers
70 views

My Samsung Galaxy S8 has crashed and will not go through the forced restart procedure

My Samsung Galaxy S8 has not suffered any water or impact damage. It just stopped working all on it's own. I have tried to go through the forced restart/reboot procedure - ie - holding down the power ...
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1answer
41 views

Armv8 image stuck on booting process

I can't make it to boot an armv8 image (API24, Nougat, Android 7.0) to boot successfully in Android emulator. The Emulator software was updated today to the latest version. The first problem I can ...
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1answer
25 views

Power on when charging but only when battery level is greater than 20%

I have recently tried to fit a tablet into my car and I came across a problem with waking up the device without using the power button. My solution is to boot the device whenever it is charging, but ...
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2answers
81 views

Redmi 3 stuck on bootloop with no recovery mode access

I have a Redmi 3 MIUI7 that I recently flashed with MIUI9 using TWRP. Right after flashing, I tried to boot it but it stuck on a bootloop. Since I haven't booted into the ROM and can't do so because ...
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28 views

Link between device state & user settable root of trust

I am (still) trying to understand exactly how verified boot works and I am wondering what happens when a user-settable root of trust is used by the device. As said here: If the device is LOCKED, ...
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1answer
26 views

What do options on this error mean?

I have Acer E39 phone (Android 4.4.2) that has 3 SIM. Today, when turned on, it didn't start normally but instead, I got the following options. What does each of the options mean? How do I debug ...
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1answer
58 views

Why is there “/proc/net/snmp” file on my device? Could it be due to a malware?

After reading this paper I observed a little and I realized that an SNMP socket (exactly two: v4 and v6) exists when I use ls /proc/1/net. I see them clearly. My question is simple, do the bootkits ...
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2answers
40 views

Fixing a kindle fire X43Z60

So I have a Kindle Fire. One day I was stupid and deleted a bunch of stuff in the /system folder. Now, it no longer boots. No ADB, no fastboot, no nothing. However, it still shows the static boot ...
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0answers
14 views

I am in stuck with rebooting Samsung S5 in normal mode rather than recovery mode. How to fix?

Consider the following thing first: My Power Button doesn't work at all. My phone was on and I connected the phone with PC and ran the following command in adb adb reboot recovery Then it opened ...
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1answer
144 views

Can't Flash Google Factory Image - No Boot Partition

I seem to have bricked my phone but thankfully the bootloader is unlocked so I'm sure there is a way to fix it. I am having a hell of a time though, I think I need to re-create the boot partition ...
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0answers
20 views

Asus not able to charge or boot

I have a strange problem. My device is Asus Zenfone Max ZC500KL. I have a LineageOS (forgot the version but Android 7 or 8 I think) on it. The battery is drained and at 0%. And as soon as I plug it ...
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1answer
28 views

Where do the exact locations of the phone buttons combinations stored?

Where do the exact location of the phone button combinations like power reset while holding Volume down + Power, booting to recovery by holding Volume up + Power + Home (if there is a Home button) is ...
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1answer
95 views

Huawei Ascend Y530 will not boot

I have a huge problem with my Huawei Y530 cell phone. Today I received a phone call, but instead of actually ringing, it just vibrated once, and an error message popped up saying something along the ...
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1answer
33 views

Prevent homescreen/desktop from showing before my start-up app?

I have this bootup app that listens to the system boot up event and will launch on system start up (pardon the verbosity). Problem is, the system will stubbornly show the homescreen (or a static ...
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0answers
25 views

SM-G130E phone is not booting after the Samsung Logo (Samsung star Duos 2)

This icon (!) comes when im trying to hard reset by Volume up + Home + Power. Any solution?
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0answers
89 views

Access file in sdcard from init.rc

I need to copy a file from the external SDcard to a location in the root partition, during the boot process (from init), after /data is mounted. I used Carliv's tool to add the following line to init....
2
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1answer
111 views

actual limitations of locked bootloader

I have read in many posts that a locked bootloader prevents from flashing custom ROMs, because it checks the digital signature of the ROM itself. I thought a "bootloader" was only responsible for ...
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1answer
85 views

What position do cellular communcation (1G, 2G, 3G, 4G or other function only implemented in phone) play in Android operating system archtecture?

I am entirely new to Android, but have a little knowledge on Linux. I have view the architecture graph of android on official site: The Problem: Not all android device support cellar network. As a ...
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2answers
34 views

Stuck in system recovery

I have a hTC D626w, after an interrupted update, it does not boot any more. When I enter recovery mode, I see the following message at the bottom of the page: No file end with factory_update.zip ...
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1answer
445 views

System crashed and not rebooting on Xiaomi Redmi 5 Plus

I have a Xiaomi Redmi 5 Plus with MIUI 8. My system crashed today and then the phone tried to reboot but is stuck eternally in the boot screen with the Mi and Android logo. I only had 100 MB free ...
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0answers
19 views

Asus Nexus 7 2013

This is brief, my original was to big. Unit was working perfectly. Over a month deleting & uninstalling. Next boot displayed "UI" with system hung, only option shut down. Every boot after ONLY ...
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1answer
222 views

OnePlus 5 Black Screen after Pie

My OnePlus 5 after the Pie OTA update wont show the screen. after rebooting, it only shows the 'android' logo and then the screen goes completely blank(black). I can sense that the phone is turning on ...
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0answers
167 views

Can't unlock my phones bootloader

I'm using a local branded chinese phone. And my phones comes with locked bootloader. As it is a local branded phone, manufacture doesn't provide a official way to unlock it! I've tried many way I ...
3
votes
1answer
1k views

How to fix a phone stuck at firmware update screen?

My phone was dead so I plugged it in to charge. I attempted to turn it on and saw: Firmware Update Do not unplug the USB connection until the process is complete. This was all it showed and ...
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0answers
41 views

Cool 1 C103 stuck in twrp

I installed the twrp from https://forum.xda-developers.com/cool1/how-to/guide-easy-twrp-root-using-qfil-eui-t3781171 and then tried to install unofficial lineage 15.1 followed by Gapps. I probably ...
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1answer
2k views

How to fix device when stuck in firmware update with “Do not disconnect USB” message?

I have an LG Android phone. When I turned it off last night, it turned itself back on again with the firmware update showing "Do not disconnect USB". But when I received it from my contract holders, ...
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1answer
54 views

Android 4.2 - how execute shell command on system boot? [duplicate]

How do I do that? I have root access and the it's a custom build of AOSP project.
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1answer
403 views

How to root Exynos S8 SM-G950F?

I have rooted devices before: an A3 2016 and a Note 3 Neo. I don't remember the exact procedure, but it was quite effortless. Now I have an S8, the SM-G950F variant to be precise, and everyone states ...
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1answer
238 views

How does android dm-verity protection validate blocks with hash tree

I am learning about android dm-verity protection and I try to understand how does the android dm-verity uses the hash tree for validation of "single block". https://source.android.com/security/...
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1answer
107 views

How to know why is my Nook unable to boot into ClockWorkMod?

I have a Nook Simple Touch that is already rooted. I've used the Clockworkmod file that I downloaded from the XDA-developers website here. These are the steps I followed: I connected my device to my ...
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1answer
2k views

How to fix phone booting only into fastboot mode after flashing a custom ROM?

I have a Wileyfox Swift and I have tried to install lineageos 15.1 by following the tutorial that can be found on the lineageos website. I have successfully installed adb, twrp and used it to install ...
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0answers
44 views

Linux automount corrupts ext4 partitions of Android install?

I've been experimenting with dual-boot between Linux and Android on an x86 device which came with Android + Windows preinstalled (Chuwi Hi10 Pro). I soon found out that simply booting Ubuntu (either ...
2
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1answer
493 views

How to make phone boot automatically upon battery insertion (unlocked bootloader and root: yes)?

By battery insertion I mean current flowing on the battery pins, not the micro USB port. Description The phone in question is a Samsung Galaxy Xcover 4, the bootloader is unlocked, and I have root ...
5
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1answer
2k views

Backup/dump kernel image (and full ROM) without root for Mediatek Devices

I would like to pull the boot image of my device Pipo N7. I don't have root. I found the following link: Backup/dump kernel image without root or twrp/cwm` But when I try to find /dev -name 'by-name'...
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0answers
14 views

RedMi 3S stopped, no battery charge indicator

I have a RedMi 3S, bought about 2.5 years, unrooted. I was using it earlier today - not doing anything fancy or strange (that I know of); but a while later, I wanted to use it again - but it was dark....
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0answers
44 views

Android Galaxy Media Player 3.6 is stuck on startup screen and keeps flashing

I don't know how to do android recovery on this device since the home button is a touch screen. It's stuck on the Samsung startup screen and keeps flashing the logo. It won't fully turn on even when ...
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0answers
64 views

Android Automatically open a Webpage using Chrome on boot

I have an Android TV box plugged on a TV in a waiting room. I would like to have a web page open on Chrome automatically when I turn it on. Is it possible to do? Thanks
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0answers
23 views

LG K8 keeps optimising apps on boot

So, I have LG k8 (2017), and everytime I reboot, it get's stuck after the Lg welcome logo, and it says "Optimising apps 1 of 2..." I tried recovery boot but it didn't workout. Is there another way ...
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0answers
77 views

I destroyed the bootanimation of my phone and now it's stuck in the boot screen (black screen)

So I rooted my phone (Cherry mobile flare 2) and tried to messed up with the boot animation file :3, I changed the bootanimation.zip and changed the pictures in attempt to manually change the boot ...
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0answers
142 views

xt1527 in boot loop with usb debugging disabled

a couple days ago my xt1527 started acting weird. Gapps started to crash out of nowhere. Today, every app that I tried to open crashed 2 seconds after, so I turned my device off to reboot and see what ...
3
votes
1answer
371 views

After flashing TWRP, device no longer boots

I just got a device running Android 7.1.1 (an BQ Aquaris X5 Plus to be precise). Fine device, and all – unlocking the bootloader was as easy as enabling bootloader unlock in settings, and running ...
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1answer
69 views

Is there an advantage to powering-off the device “properly”?

There's something I've always wondered about Androids, which may or may not be causing issues for me... What is the advantage to "properly" shutting down the device, as opposed to just yanking the ...
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0answers
60 views

Google Nexus 7 (2013 Wi-Fi) Boot freeze, no recovery options working

I bought a Google Nexus 7 2013 edition, Wi-Fi only, from a yard sale. I have no clue what the previous owner did or tried but I cannot get it to boot. I'm not by any means an Android expert so if it ...
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0answers
36 views

My phone is stuck in a loop

My phone is a Samsung Galaxy Young GT S6312. It does not boot up at all. I have made a video of the loop as shown here - https://drive.google.com/file/d/1t38NYXvawmxSiIK9gqRTLINoIvG158Vi6w/view?usp=...
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1answer
147 views

Asus Zenfone 3 Zoom broken power/volume key - How to boot

I got big problem with my phone (ASUS Zenfone 3 Zoom) I broke the plug that connect the power/ volume cable so I am not able either turn on the phone or turn to safe mode. Also the USB debugging ...
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0answers
79 views

ADB: Check if Android boot process is complete

I have an Android6_x86 in a virtual machine, which is started and controlled by my PC software. That is, my software starts the VM, connects via ADB over TCP/IP to android, and starts an app. The ...