[Q] Crown B700 tablet - Android Q&A, Help & Troubleshooting

I received yesterday my new tablet, bought from here, Dubai, UAE. I have an issue. It doesn't shut down and restart properly. After I choose to do any of these it turns off like the battery would be plugged off. After it turns back on, the basic apps like Skype, Search, Twitter and a few others which are preinstalled automatically in the ROM they go back to its initial version and the update is erased. Its like a full reset but the account and settings are not touched. I found similar problems on the forums but they get a full reset after each restart and to solve the issue you have to root your tablet and copy the busybox file from system/xbin to system/bin. I did this but it doesnt help. Also I tried to flash a ROM from their official russian website but after it starts verifying the zip an error like
Code:
assert failed: !less_than_int getprop ro.build.date.utc
shows up, in the recovery menu. My problem is a bit different.. Its related only to the basic apps which come with the ROM and only the ones who install themselves in the data section not system. Where can I start looking for a solution and do you think these improperly shut downs are related to this? I can even uninstall these apps after restart, but they are put back after the next restart. My tablet is running a 4.1.1 Jelly Bean. Would be thankful if you guys advice me in it. The device is really good, you feel some power inside, but this android system issue makes me crazy.
Sent from my B700 using xda app-developers app

Mango Polo said:
I received yesterday my new tablet, bought from here, Dubai, UAE. I have an issue. It doesn't shut down and restart properly. After I choose to do any of these it turns off like the battery would be plugged off. After it turns back on, the basic apps like Skype, Search, Twitter and a few others which are preinstalled automatically in the ROM they go back to its initial version and the update is erased. Its like a full reset but the account and settings are not touched. I found similar problems on the forums but they get a full reset after each restart and to solve the issue you have to root your tablet and copy the busybox file from system/xbin to system/bin. I did this but it doesnt help. Also I tried to flash a ROM from their official russian website but after it starts verifying the zip an error like
Code:
assert failed: !less_than_int getprop ro.build.date.utc
shows up, in the recovery menu. My problem is a bit different.. Its related only to the basic apps which come with the ROM and only the ones who install themselves in the data section not system. Where can I start looking for a solution and do you think these improperly shut downs are related to this? I can even uninstall these apps after restart, but they are put back after the next restart. My tablet is running a 4.1.1 Jelly Bean. Would be thankful if you guys advice me in it. The device is really good, you feel some power inside, but this android system issue makes me crazy.
Sent from my B700 using xda app-developers app
Click to expand...
Click to collapse
i will buy the b800 is it a good tablet im very afraid of it after looking at your comment

Related

[Q] Optimus T stops functioning after rooting

I recently purchased an Optimus T and rooted it with z4root and then installed Titanium Backup to delete some of the preinstalled apps, like the Pacman Demo.
As I was removing each app, (~5 at this point) the Home button suddenly stopped working, followed by total phone death. Even after factory reset, when I was trying to access the phone, eventually I was shown a "... setup.exe stopped responding..." (or something like that) message and my phone just stayed stuck on the booting screen (android) every time I restart (w/o entering factory reset).
Does anyone have any ideas, or know which apps can prevent the phone from booting properly? A list of safe apps to delete would be helpful too. I thought I was pretty cautious with removing only non essential apps, but it seem bricked. Thanks again!
daramji said:
I recently purchased an Optimus T and rooted it with z4root and then installed Titanium Backup to delete some of the preinstalled apps, like the Pacman Demo.
As I was removing each app, (~5 at this point) the Home button suddenly stopped working, followed by total phone death. Even after factory reset, when I was trying to access the phone, eventually I was shown a "... setup.exe stopped responding..." (or something like that) message and my phone just stayed stuck on the booting screen (android) every time I restart (w/o entering factory reset).
Does anyone have any ideas, or know which apps can prevent the phone from booting properly? A list of safe apps to delete would be helpful too. I thought I was pretty cautious with removing only non essential apps, but it seem bricked. Thanks again!
Click to expand...
Click to collapse
About list off apps, I have to agree. Even it there is litle problem with dependencies, some minimum describe of these issue will be great!!
So, about your problem - I think, that you will have to download original ROM and do flashing with KDZ_FW_UPdater. (search on xda for more information).
But definitely, if it's possible I would try to install custom recovery throw adb shell (android SDK tools) and do backup of system for possibility to recovery or saving at least few data, and after try wipe and install one of custom ROM.
This happened to me after I tried deleting preinstalled apps on my Optimus One... Sent it in for repairs since it just stopped working. The tech guy said he did a "software update" and everything is good as new (except for the LGMITS error once in a while)
They didn't even bother trying to fix mine. They just told me to send it in and gave me a replacement.
So I finally figured out what I did wrong - basically when I was doing the deleting, I accidentally deleted the LG Home app, which effectively deactivated my (duh) home button and effectively stopped everything from functioning properly. For some reason I thought it was just a simple link from my phone directly to the LG website, as would happen with new PCs very often. Well... won't be doing THAT again.
However, my web2go button isn't working. I have to force quit every time I try to click on it. Can I just get rid of it or will it just give me more trouble later on?
At least you knew what went wrong with yours... I was just erasing CarHome and Layar and the LG App Adviser among other things i wont be using like Twitter and Latitude.
And they even gave you a new one x__x I had to wait 5 days before everything was good as new. After the first fix, USB debugging and mass storage stopped working so I sent it in for another "software update"...

[Q] Need help to Halt OS update Installation

Hope you can help me - I am desperate to halt the OTA update for my galaxy s4 -
based on everything I’ve read, Samsung did a really bad job on this update, 4.4.2, and they are currently rolling out 4.4.3 and 4.4.4, but of course, the s5 is getting it well before we are.
anyway,
I have been “happily” running 4.3 and just dealing with the bluetooth issues, found enough hacks/fixes for the wifi issue that i have been ok with it since getting 4.3 in November.
There are just too many unworkable issues of battery drain, overheating, losing apps, pics, etc etc etc for me to risk the update to 4.4.2.
HERE’S MY PROBLEM - Somehow, altho i'm fairly technical, the update finally got on my phone (after having kept it off for months) and for the past month or more, I've just been
dealing with the notification, putting it off for 24 hrs at a time.
I guess it finally decided not to allow me to do that any longer, and started the installation without permission. i stopped it by pulling the battery, but when i try to start in recovery mode just so i can clear cache and hopefully reboot without actually installing the new os, I cannot - it goes through (some of) the motions but when i let go of the power button as i should when it's running normally, and would get the options of factory reset, clear cache, et al, it just brings up the android bot and shows that it is continuing to install where it left off. I’ve done this numerous times.
Tried different methods of button-holding and other trouble-shooting based on massive searching, but always get the same result. and I can only pull the battery to stop it.
Am I stuck? Do I have to install now at this point?
I do not want to perform factory reset, guess I'd rather install the 4.4.2 s/w. (altho I can't even get to that option at this point)
Sincerely hope someone out there will respond – I've posted to multiple sites, and no one is responding - gonna have to turn my phone back on at some point soon...
Thanks in advance!!
Roxanne
rkohlin said:
Hope you can help me - I am desperate to halt the OTA update for my galaxy s4 -
based on everything I’ve read, Samsung did a really bad job on this update, 4.4.2, and they are currently rolling out 4.4.3 and 4.4.4, but of course, the s5 is getting it well before we are.
anyway,
I have been “happily” running 4.3 and just dealing with the bluetooth issues, found enough hacks/fixes for the wifi issue that i have been ok with it since getting 4.3 in November.
There are just too many unworkable issues of battery drain, overheating, losing apps, pics, etc etc etc for me to risk the update to 4.4.2.
HERE’S MY PROBLEM - Somehow, altho i'm fairly technical, the update finally got on my phone (after having kept it off for months) and for the past month or more, I've just been
dealing with the notification, putting it off for 24 hrs at a time.
I guess it finally decided not to allow me to do that any longer, and started the installation without permission. i stopped it by pulling the battery, but when i try to start in recovery mode just so i can clear cache and hopefully reboot without actually installing the new os, I cannot - it goes through (some of) the motions but when i let go of the power button as i should when it's running normally, and would get the options of factory reset, clear cache, et al, it just brings up the android bot and shows that it is continuing to install where it left off. I’ve done this numerous times.
Tried different methods of button-holding and other trouble-shooting based on massive searching, but always get the same result. and I can only pull the battery to stop it.
Am I stuck? Do I have to install now at this point?
I do not want to perform factory reset, guess I'd rather install the 4.4.2 s/w. (altho I can't even get to that option at this point)
Sincerely hope someone out there will respond – I've posted to multiple sites, and no one is responding - gonna have to turn my phone back on at some point soon...
Thanks in advance!!
Roxanne
Click to expand...
Click to collapse
Are you rooted?
SiVisPacemParaBellum
OderintDumMetuant
stvn2569 said:
Are you rooted?
SiVisPacemParaBellum
OderintDumMetuant
Click to expand...
Click to collapse
Thanks for responding stvn2569!
Nope, not rooted.
But based on all my searching I sure wish I was and likely will the next phone.
Stock Verizon Galaxy s4 - 32gb - model # SCH-I545
(Sorry, should have put this in orig message)
THis summarizes some of the reason I don't want to update the OS - -
ack - can't post links - will have to type it out if you are interested in all the bugs Samsung saddled us with -
(most egregious is the battery drain, but others are quite serious and hard to live with too)
www(dot)androidpit(dot)com(slash)samsung-galaxy-s4-update-to-android-4-4-2-littered-with-bugs
rkohlin said:
Thanks for responding stvn2569!
Nope, not rooted.
But based on all my searching I sure wish I was and likely will the next phone.
Stock Verizon Galaxy s4 - 32gb - model # SCH-I545
(Sorry, should have put this in orig message)
Click to expand...
Click to collapse
You'll need to root the phone to stop the OTA notifications, it's all very easy.
Go to settings > security > allow installations from unknown sources, check the box
Go to www.towelroot.com
Click on the lambda, download and install the towelroot.apk
Click on "make it ra1n", reboot
Download "SuperSU" from the play store
Upon opening the app, it will prompt you to "update binaries". Do this using the "normal" option
Then download "Root Explorer" from the play store
Navigate to the system and system-priv app folders
In one of those folders you'll find "FWupgrade,apk" and "SDM.apk"
Delete those apk's and no more OTA updates:good:
joshm.1219 said:
You'll need to root the phone to stop the OTA notifications, it's all very easy.
.......
:
Click to expand...
Click to collapse
Thanks, Josh, I appreciate your trying to help, but if you read the original post -
I CANNOT TURN ON THE PHONE, hence couldn't get to settings if I wanted to, BUT - -
It is not the notification that is the issue -
the phone has finally downloaded the OTA update and IS INSTALLING IT. (every time I turn it on)
I DO NOT WANT THIS UPDATE INSTALLED. (see prior post for the reason - it's terribly buggy update - worse than what I have)
I have to figure out how to halt it - when I try to start in "recovery mode", it doesn't give me the options
it normally would - I won't start in a normal recovery mode.
It continues the OS update.
I noted all this in the original post - I completely understand how to get rid of the update notifications.
One doesn't even have to root the phone to do this, you can just rename the SDM apk (like add .bak or something)
Do you have ideas how to stop the installation? How I can turn phone on in recovery mode?
(note the steps I've taken to do that are also in the original post)
I know there are many people out there smarter than me about this - hoping you guys can help...,
rkohlin said:
Thanks, Josh, I appreciate your trying to help, but if you read the original post -
I CANNOT TURN ON THE PHONE, hence couldn't get to settings if I wanted to, BUT - -
It is not the notification that is the issue -
the phone has finally downloaded the OTA update and IS INSTALLING IT. (every time I turn it on)
I DO NOT WANT THIS UPDATE INSTALLED. (see prior post for the reason - it's terribly buggy update - worse than what I have)
I have to figure out how to halt it - when I try to start in "recovery mode", it doesn't give me the options
it normally would - I won't start in a normal recovery mode.
It continues the OS update.
I noted all this in the original post - I completely understand how to get rid of the update notifications.
One doesn't even have to root the phone to do this, you can just rename the SDM apk (like add .bak or something)
Do you have ideas how to stop the installation? How I can turn phone on in recovery mode?
(note the steps I've taken to do that are also in the original post)
I know there are many people out there smarter than me about this - hoping you guys can help...,
Click to expand...
Click to collapse
My bad, I would suggest booting into download mode and flashing the mk2 tar file with odin (3.09 recommended).
I didn't suggest renaming the file because it doesn't always work. Told my brother to do that on his Note 3 (no root method at the time) and it start downloading an OTA upon reboot one day.
joshm.1219 said:
My bad, I would suggest booting into download mode and flashing the mk2 tar file with odin (3.09 recommended).
I didn't suggest renaming the file because it doesn't always work. Told my brother to do that on his Note 3 (no root method at the time) and it start downloading an OTA upon reboot one day.
Click to expand...
Click to collapse
Thanks, Josh!
When you say "boot into download mode" - you mean safe/recovery/download mode right?
(like when one holds (for this model) VolumeUpButton+PowerButton right?)
If that's the case, it doesn't allow me to boot that way. When I do that, it just skips right to
"Installing system update" (with the droid bot)
That's my problem.
Cannot access anything (without allowing the install). :crying:
Have also tried VolumeUpButton+PowerButton+HomeButton. Same.
Drat.
Looks like I may have to accept this OS.
Others I know that have deal with terrible battery drain issues (from 10 hrs heavy use on charge down to 2 hrs)
rkohlin said:
Thanks, Josh!
When you say "boot into download mode" - you mean safe/recovery/download mode right?
(like when one holds (for this model) VolumeUpButton+PowerButton right?)
If that's the case, it doesn't allow me to boot that way. When I do that, it just skips right to
"Installing system update" (with the droid bot)
That's my problem.
Cannot access anything (without allowing the install). :crying:
Have also tried VolumeUpButton+PowerButton+HomeButton. Same.
Drat.
Looks like I may have to accept this OS.
Others I know that have deal with terrible battery drain issues (from 10 hrs heavy use on charge down to 2 hrs)
Click to expand...
Click to collapse
It is Power button click and hold volume down....
rkohlin said:
Thanks, Josh!
When you say "boot into download mode" - you mean safe/recovery/download mode right?
(like when one holds (for this model) VolumeUpButton+PowerButton right?)
If that's the case, it doesn't allow me to boot that way. When I do that, it just skips right to
"Installing system update" (with the droid bot)
That's my problem.
Cannot access anything (without allowing the install). :crying:
Have also tried VolumeUpButton+PowerButton+HomeButton. Same.
Drat.
Looks like I may have to accept this OS.
Others I know that have deal with terrible battery drain issues (from 10 hrs heavy use on charge down to 2 hrs)
Click to expand...
Click to collapse
Like he said, download mode is Power+VolumeDown, press and hold.
UPDATE:
Well, never could get into download mode, so had to accept the OS update to KK 4.4.2
Guess I'm one of the lucky ones, (I do have a fairly new model S4) and I didn't lose apps or contacts.
however,
The Battery Life is TERRIBLE after the 4.4.2 update! Some WiFi issues too.
Seem to have fixed WiFi (for now anyway)
Been searching around and recalibrated my battery, am trying a battery life extender app,
turned off a huge bunch of Samsung and Google apps that evid constantly "ping" and use battery.
It's been a little better, but not a lot.
Hope for 4.4.4 to be available soon (heard 4.4.3 is not a good variant either)

Lenovo Lemon 3 - irritating problems with stock ROM

Hi!
I'm new on XDA, so I'm sorry if the thread is placed in wrong subforum - if it is, I'm asking mod to move it in more proper place.
I bought Lenovo Lemon 3 - it was advertised as Vibe K5 Plus, but apparently the seller wasn't that reliable as I thought. As far as I know, the differences beetwen these models are little or none, but I have pretty big problems with the phone.
First of all it has some preinstalled software, which isn't in Play Store and some of them I can't even find in the net. The apps I would like to get rid off are KingRoot, MaxxAudio and SecurityIT. I successfully managed to disable MiBrowser - with help of KingRoot tool Purify actually. I tried to disable SecurityIT also, but if I do that I can't enter Settings->Apps. When I try the com.android.settings is stopped and it's not working till i enable SecurityIT again.
Second of all is that process com.android.phone is stopping randomly. Sometimes I click "ok" and I it starts working again. But sometimes it keeps crashing until I restart the phone. Since it's a dual sim phone and I'm using only one sim I thought that maybe this is causing a problem, but inserting second card wouldn't work, so currently I have no idea what is causing the problem. I tried cleaning cache and appdata with no effect. If the process is crashing and somebody will call - the phone restarts itself when I try to answer.
Thirdly it's hot. Even if I'm not doing anything and all apps are off and Im charging the phone it sometimes says that it can't be charged because of too high temperature on battery. Sometimes it works fine, but sometimes it's too hot too touch and I don't know why.
Oh, and one more thing. Something is installing random software. It looks like every time I open Chrome something is opening new tab and redirecting to PlayStore. I am trying to close these tabs while they're loading, but sometimes it loads too fast. Every morning I uninstall some new app, which is apparently installed by night. And those apps aren't added to my Play Store Account. I have disabled unknown sources, but I can see that phone is checking for updates around 2 a.m - so maybe those apps are from there - but I can't see any possibility to disable auto-updates. I have disabled auto updates in Play Store and I have "Lenovo Enhanced Experience" unchecked. Most of apps I installed from Play Store are games I had on the previous phone so I am sure they're not dangerous. Any ideas to prevent the installation of this unwanted software will be appreciated.
Since I used KingRoot to disable MiBrowser I apparently rooted it, but I was reading that this works only with KingRoot installed and with internet connection. And it's sending some data to China, which is not nice. RootChecker says it's rooted.
Lenovo Launcher it's not great either, I downloaded Lollipop Launcher from store and it works fine, but I had to block Lenovo Launcher from autostart, because it was very irritating and was enabling few times.
I am living in Europe so I was thinking is it possible to put on this phone Lenovo Vibe K5 Plus Stock ROM? Or is it this "trashy" like the one I have? I really like specs of the phone and I don't wanna return it, but I don't like the software behavior. Can you tell me what I can do to improve this? I don't care about warranty and I would like to have pure, non trashy Lollipop, so if it is possible somehow I would be glad for any help.
Thank you in advance for any help!
Lenovo Lemon 3 K32C36 > Cyanogenmod 14 - 7.1.1: SUCCESS
Hi
Did not know where to post this, I was not allowed to post in developer forums:
For those unlucky enough to have bought a Lenovo Lemon 3, I offer hope. My daugther's 'Lemon' now runs cyanogenmod 14 near flawlessly.
Here's what finally did it.
1st you have to unlock the bootloader. I found this page, google translated it,
http://4pda.ru/forum/lofiversion/index.php?t717648-420.html
and near the bottom is this link to a 'one-click bootloader unlocker'
http://lenovo-forums.ru/applications/core/interface/file/attachment.php?id=56376
[All this is similar to the Lenovo unbricking described here:
https://forum.xda-developers.com/k5-plus/how-to/unbrick-vibe-k5-plus-qfil-qpst-method-t3467830
but a lot of that is not what you need now.]
You have to install and run QPST from this on a Windows machine, and the Lenovo and Qualcomm USB drivers and the Visual C thing too to set it up.
I fiddled for a while but eventually got QFIL to recognize the Lemon. Keep in mind Win is pickier about USB cables than Linux.
Following instructions carefully, that one click then worked!
I moved back to Linux and adb and did the second part (pasting instructions from the Win .bat file into a root terminal). Sure enough, when I booted into recovery I had TWRP! But it showed no files on the Lemon and said there was no OS there! Nevertheless I was able to boot back into the awful K32C36 system with no problem.
So I went back to adb and did it again, but this time from the info and links on this page - but I did not at that time see the need to root.
https://forum.xda-developers.com/k5-plus/development/recovery-twrp-3-0-2-0-lenovo-vibe-k5-t3391100
Beyond all expectation TWRP then booted and all was visible.
I then picked this ROM page because someone had wrote that they had it working on K32C36
https://forum.xda-developers.com/k5-plus/development/unofficial-cm14-lenovo-k5-k5-plus-t3478288
to get this
http://moto.shreps.fr/Lenovo Vibe K...cm-14.x/cm-14.1-20161213-UNOFFICIAL-A6020.zip
Then onto SD card with it and pico 7.1.1 gapps
Install with TWRP (after backing up lame old ROM and wiping system, data, cache, as advised).
Long wait during 1st new system boot (I thought it was defeat) -- but comes the little blue man bringing very good Nougat.
Hope someone gets helped here .

Can't fix Bugged custom ROM

I have a Galaxy S III GT-I9300 I bought in 2014. After three years, I downloaded a custom ROM from xda-developers (android 4.3 is all I remember about it) and installed it successfully. It worked alright until one day when I wanted to sell the phone and a customer wanted to buy it on short notice, and I rushed to delete my files from the phone, but I destroyed the Android... I connected it to my laptop and shift-deleted some system files.... since then, the phone is delaying when trying to unlock (if i lock it now and try to unlock it a few times, it opens harder and harder), when I'm using apps it continously shows that some .com processess stopped working, and if I try to turn on the bluetooth, the phone instantly freezes and restarts itself.
I tried reinstalling two original ROMs, (version 4.1.2) successfully, but the data on the phone&the system problems remain the same.
I'd like to know how can I make a hard reset, meaning in deleting all the files&settings as it was brand new, just to clear everything, like clearing CMOS. I also think the recovery mode is damaged and I'd like to fix it somehow (if this is possible). The installation process I did for installing the custom ROM from XDA-devs was long and complicated, I had to do a lot of things... and I just want to get the phone fixed and restore to default (or even to fix bugs on this android version) its android, kernel & everything could be ,,reflashed''.
I'm willing to pay if someone helps me fix the problems and it really works. Thank you!

Can't fix Bugged custom ROM

I have a Galaxy S III GT-I9300 I bought in 2014. After three years, I downloaded a custom ROM from xda-developers (android 4.3 is all I remember about it) and installed it successfully. It worked alright until one day when I wanted to sell the phone and a customer wanted to buy it on short notice, and I rushed to delete my files from the phone, but I destroyed the Android... I connected it to my laptop and shift-deleted some system files.... since then, the phone is delaying when trying to unlock (if i lock it now and try to unlock it a few times, it opens harder and harder), when I'm using apps it continously shows that some .com processess stopped working, and if I try to turn on the bluetooth, the phone instantly freezes and restarts itself.
I tried reinstalling two original ROMs, (version 4.1.2) successfully, but the data on the phone&the system problems remain the same.
I'd like to know how can I make a hard reset, meaning in deleting all the files&settings as it was brand new, just to clear everything, like clearing CMOS. I also think the recovery mode is damaged and I'd like to fix it somehow (if this is possible). The installation process I did for installing the custom ROM from XDA-devs was long and complicated, I had to do a lot of things... and I just want to get the phone fixed and restore to default (or even to fix bugs on this android version) its android, kernel & everything could be ,,reflashed''.
I'm willing to pay if someone helps me fix the problems and it really works. Thank you!

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