Questions tagged [boot]

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

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22 views

How to exit out from a stuck safe mode?

My Samsung Galaxy A3's power off button didn't work, so I held the Power off and Home key for 5 seconds which brought me to a custom OS warning. It showed that I could cancel and restart if I pressed ...
2
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1answer
54 views

ST21i Removed boot flag

I was trying to boot from the sdcard, as I thought it was a boot order issue, I disabled the boot flag on the boot partition. Now my phone will not turn on, or enter bootloader. I have found various ...
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7 views

How do I unfreeze my LG L15G sunrise?

I keep trying to turn it on and at first it just got stuck in a boot loop, so i factory data reset it and after the reset when it boots itself up it freezes on the LG powered by android screen. I have ...
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20 views

Is there anything like live CD for android phones?

We can go into recovery mode in android phones, which is usually home+volume up+power for samsung phones This answer says that the recovery mode is like a simple OS that the device boots into. This ...
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17 views

what does ddi stands for in android os?

What does ddi stand for in android OS? My phone g532f couldn't power on, but enter download mode just by using "jig USB" !!.. this message appears in download mode. ddi read failed (in rad color) ddi ...
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14 views

Reading phone partition and writing to SD Card

Guys i really need HELP Mine Docomo S7 from Japan aka SC-02H is bricked, so No Download - No Recovery - Not Turning ON I found another SC-02H working one from mine friend - I Read somewhere that i ...
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1answer
14 views

itel phone unable to switch on

I bought a new itel phone yesterday. I charged it a bit then added apps and photos and music. I played some music during the night. I tried rebooting does not go on, it vibrates but screen is blank.
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21 views

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
17 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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16 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
159 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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255 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
77 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
28 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
114 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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35 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
27 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
68 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
64 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
17 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
249 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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22 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
30 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
168 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
38 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
30 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
113 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
163 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 ...
1
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1answer
92 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
37 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
594 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
20 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
250 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
243 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
2k 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
48 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 ...
0
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1answer
3k 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
59 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
485 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 ...
3
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1answer
337 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/...
1
vote
1answer
123 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 ...
1
vote
1answer
3k 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 ...
1
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0answers
48 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
votes
1answer
634 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
46 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
124 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
24 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 ...
1
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0answers
96 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 ...