Database Users

[Q] eLocity just quit...won't boot up

I have been running my a7 with dexter's mod 1.4 for about 1 1/2 weeks...everything has gone well. This afternoon I turned on the device and it failed to complete boot. The word Android would come up and then nothing. I tried to reboot, reset, but device would do neither...nor would it turn off completely. I kept trying to take it into recovery mode and then after several tries was able to wipe, do update again, and get everything back as before. What would cause this and should I look for this to happen again? deepmagic
My a7 was running well for about a week since it quit...but today when I booted up device, it failed to recognize sd card...same card used for updating to mod 1.4...same card I've been using to listen to my music, etc...but now won't recognize...I've tried two different micro sdhc cards..formatted, reformatted, but device continues to display mount sd card...all else works fine! Does anyone have any new ideas? I can't even reinstall mod since a7 can't read my cards. Thanks for any input that would be helpful. I understand these issues are ongoing for many out there...what to do?

deepmagic said:
I have been running my a7 with dexter's mod 1.4 for about 1 1/2 weeks...everything has gone well. This afternoon I turned on the device and it failed to complete boot. The word Android would come up and then nothing. I tried to reboot, reset, but device would do neither...nor would it turn off completely. I kept trying to take it into recovery mode and then after several tries was able to wipe, do update again, and get everything back as before. What would cause this and should I look for this to happen again? deepmagic
Click to expand...
Click to collapse
Mine has hung on a black screen on me. Seemed that it didn't fully come out of sleep mode.
I was able to recover by holding the power button for 15 seconds to hard power down. No data loss.

deepmagic said:
I have been running my a7 with dexter's mod 1.4 for about 1 1/2 weeks...everything has gone well. This afternoon I turned on the device and it failed to complete boot. The word Android would come up and then nothing. I tried to reboot, reset, but device would do neither...nor would it turn off completely. I kept trying to take it into recovery mode and then after several tries was able to wipe, do update again, and get everything back as before. What would cause this and should I look for this to happen again? deepmagic
Click to expand...
Click to collapse
Exact same thing happened to me this morning. Tried to reset - not happening. Hard powered down. Don't have time to try anything else right now. I'm new to the forums and new to android. Wish me luck! I've been loving my A7, and much appreciation to Dexter and all the other knowledgeable hackers/modders/posters.

hey the same thing happened 2 me twice. Once the first day after i got it, since i had only had it for 1 day i wiped it reinstalled dexter's mod 1.41 and it worked. First app i installed was backup root. Now, a week later the exact same thing is happening. This time i dont want to wipe it because of all of the apps i have installed, games ive played etc. Any ideas? Could we just try reinstalling dexter's md without wiping? Or wiping reinstalling and recover from a backup?
Also have you installed busybox? I had just installed it both times before it failed to turn on. Maybe its just coincidence but you never know..
-D
Thanks to anyone who can help! and also thanks Dexter for all your hard work as well as everyone else that has contributed to the elocity, im lovin it! (when it works )

success!!!!
I got it to work! I don't have a permanent fix but if it happens again just boot into recovery and reinstall the dexter's mod update 1.41 and it works again! No wiping required. This isn't a permanent fix but it will work until we find one
-Dylan

Hasn't happened to me (yet) but I didn't upgrade to the newest ROM. I'm still using 1.3and it has been very stable. Only issue I've had was when I tried to use Killswitch to go to sleep mode when the cover is shut (great idea) but it didn't work and froze all except the live wallpaper. Weird.
Good luck, guys.

in the event it does happen to you, you might want to check out my apx thread for reflashing the factory firmware if you can't get your tablet unstuck. theres alternatives if you don't want to get stuck again.

The method you outline seems so complex...way above my abilities, but makes me wish I had followed though on some early programming training opportunities. That was the road not travelled.

okantomi; while i wouldn't encourage others to follow thru with procedures they fear would cause more harm, i would mention that if you google up my nick you'll find i've been able to do much w/ android software and devices while not knowing anything about programming. if i can do it, anyone can. i just wanted some themes for my phone.
i'm just an android hobbyist by night (and when i get a chance during the day), and a computer tech by day. no programming expertise, but i can reasonably reverse engineer and port software and components using simple file managers like ztreewin(trialware).
don't be mistaken that the folks out there providing you solutions necessarily know anything about programming or software development. just how to chef up files at different levels. i understand this doesn't go for everybody.

Thanks for the encouragement. I'm impressed with what you've been able to do. It is also nice to read upbeat comments about the A7. There is something sort of special about a device that you really almost have to build yourself... putting so much into it... biting your fingernails to nubs with each ROM flashing. You don't get as attached to any device that is 100 percent complete right out of the box, though of course there would be a lot less aggravation.

OTA Update Fails

Wtf got the ota update and its starts all good but then it hangs a yellow ! appears.. what can i do? i even did a factory reset i only was rooted and i took care of that.

zero313 said:
Wtf got the ota update and its starts all good but then it hangs a yellow ! appears.. what can i do? i even did a factory reset i only was rooted and i took care of that.
Click to expand...
Click to collapse
at least you are getting something OTA

Ditto
Unfortunately, I get the same thing. I was rooted, but I unrooted (not quite as thoroughly as you did, as I only used the "Unroot" option, but we got the same results). Wonder if it is something wrong with the update...

seanfrisbey said:
Unfortunately, I get the same thing. I was rooted, but I unrooted (not quite as thoroughly as you did, as I only used the "Unroot" option, but we got the same results). Wonder if it is something wrong with the update...
Click to expand...
Click to collapse
Did you change ANYTHING when rooted? Did you freeze, rename, modify or delete ANY of the files in the original ROM in any way, shape or form?

Same thing here
When I bought this device 3 weeks ago, I rooted it with z4root. Not too long after an update disabled z4root on the tablet.
I thought no big deal, but then today comes and I the OTA update won't work.
Anyone more experienced than me have any ideas of how to get this update applied properly?

Me too. Update failed to install. Not sure why. I have also tried unrooting.

FloatingFatMan said:
Did you change ANYTHING when rooted? Did you freeze, rename, modify or delete ANY of the files in the original ROM in any way, shape or form?
Click to expand...
Click to collapse
I'm confused, if I froze an application, didn't unfreeze it but did a factory reset...wouldn't that resolve the issue?

ok so i woke up this morning and my a500 notified me the there was an update available so as you can imagine I was very happy to finally have this, so i updated and when it was done it said update successuful but when I checked it still said 3.01......WTF
Not rooted ever..

Those interested in getting back their OTA, properly backing up their original ROMS or restoring them, please follow the tutorials in this thread:
Going back to stock TUTORIAL
Be helpful and provide your firmware if you have a backup so we can build a database for those who don't.
Be sure to report what is working and what is not working for you once you've tried the tutorials!
Unlike the 14 threads on these matter I take the responsibility as OP to upgrade my original post as firmwares and new info becomes available.
Let's create a focused troubleshooting and tutorial thread,
Thanks.

I'm rooted via gingerbreak and the update worked fine while still rooted. It did break root. Just had to re-apply gingerbreak and all is good, back to root with latest update.

gingerbreak worked with official 3.1 ?
it didn't work with 'leaked' 3.1 ?

OTA
Ok after long night and hours of research i found out a lot.
1 if you have modded ad hoc in wpa_supplicant file recover the original file
2 if you have modded the phone.apk and telephoneyprovider.apk to save battery this is the reason why you won't get the update.
i put these files back and instantly got an update, i mean the exact second i set those back
i can't believe this my updates keep failing to install. FING POS i tried everything, factory reset
i have tried everything, even factory reset, it fails while installing after reboot
acer support are a bunch of retards, they don't even know they sell tablets????????
need help i can't upgrade, it fails every time
does anyone know where the install logs are

the log is \cache\recovery\last-log

Oklahoma City, OK noon CST
First attempt failed:
Changed the wpa_supplicant back to original and all went smooth the second time

I never changed anything and it failed.
**Edit: I rebooted my devices and left it completely alone after unzip and it rebooted into recovery mode and seems to be installing **

I had the same problem, It was pretty disheartening.... but I unrooted my device, re-booted and tried again and SUCCESS!!!
But now I can't get it to re-root using gingerbreak... HELP!

SUCCESS!
Ok. I got OTA update 4.010.08 (122.71 MB) this morning. It failed.
So I unrooted my device. Re-started it and tried again... SUCCESS!
I tried using Gingerbreak to root it again. FAIL!
So I used this: http://forum.xda-developers.com/showthread.php?t=1138228
SUCCESS!
Hope this helps those of you who are having problems.

No need to unroot nor go to stock.
I had the same issues. Then I simply used Acer Recovery to install stock recovery and everything worked fine.
Ceger

Acer Recovery?
Did Acer Recovery come with the tablet?

I tried the update numerous times over the last 4 days. Most of the time the download would fail, which I put down to my slow internet connection and overloaded Acer servers. But about 5 times it would finish downloading and then error out on install with a message about the update being invalid. I tried rebooting several times during this process. I have never rooted the tablet and only have a few apps installed as it was a recent purchase.
Finally it worked when I ejected the external SD card and rebooted. It may be a coincidence, but anyone else who gets the "invalid update" warning during install on an unrooted device may wish to try this prior to the download/install.

[Q] N7 4.4 update issues?

Not sure if I'm the only one, and if I am that really sucks, but I got tired of waiting for the OTA and decided to install the update via the fastboot method, unlocked my bootloader installed without a problem.
However the issue now seems to stem from transferring media files to my tablet, which I never had a problem doing, a pop up window will tell me that android.media.storage has stopped, giving me an option to report and to simply tap okay.
Not sure reporting ever does anything, and if it does I've never seen it change a single thing at all, but after I tap okay or send the report, any files transferring will just exit out, then if I unplug my usb and plug it back in, it doesn't seem to recognize the tablet at all.
I've so far remedied this, not sure if it's a permanent fix or temporary, by going into settings>apps>all, then from there tapping the app, clearing data and cache, restarting my tablet with a hard reset and it seems to be working for the moment.
However transferring files since the update are sluggish at best, and taking a 356MB folder of images used to take maybe a few minutes, 5 or 7 at the most, now it's hanging there at times with the transfer time increasing.
As a matter of fact I'm transferring said 356MB folder right now and it's stuck at 10 minutes to finish and hasn't moved for about 10 minutes.
If anybody else is having these problems, can you suggest ways you've fixed it? Or do I simply need to either do a factory reset or straight up flash it again to fix the problem?
Also, I made another article detailing my problems with updating, which I've since fixed obviously, but Recovery Mode isn't anywhere to be found, I do the regular method and before it showed the android with the red triangle and below him it would say no command, now it just shows the android with the same triangle with no wording underneath at all.
I've also re-downloaded the official factory image 4.4 from google's developer site and tried to manually flash recovery onto it, and it says that it succeeded but then when it goes back to fastboot and I choose recovery it loads then shows me the android with the red triangle.
I've even tried downgrading back to 4.3 but it tells me during the rewrite of the bootloader that there's a signature mismatch.
In addition, this should be the last revision to my issue, I've even tried re-flashing 4.4 and now that's kicking back an error saying there's a signature mismatch, so I can't go into recovery, I can't downgrade, I can't flash a recovery image to my tablet, I think I screwed up in ever updating to 4.4.

Im having the same problem with Media Storage when transferring pictures via Android File Transfer on Mac, tried it on Windows also, same problem.
It happens with my Nexus 4 on KitKat also!!
I still havent found a way to fix it, did you (OP) ever find a fix?
Cheers
Stewart

StuMcBill said:
Im having the same problem with Media Storage when transferring pictures via Android File Transfer on Mac, tried it on Windows also, same problem.
It happens with my Nexus 4 on KitKat also!!
I still havent found a way to fix it, did you (OP) ever find a fix?
Cheers
Stewart
Click to expand...
Click to collapse
Nope no fix yet, I haven't tried transferring a large number of files since, oddly enough, I finally did get the OTA update and it installed 4.4 again.
It didn't take long and the file size was puny, only about 32MB, I assume it installed what was missing, but I haven't noticed anything out of the ordinary since the official updated kicked in.

Yeah I have the latest OTA also, but I am still having the same issue!!

StuMcBill said:
Yeah I have the latest OTA also, but I am still having the same issue!!
Click to expand...
Click to collapse
Not really sure why it's different for you, like I said I got tired of waiting for the OTA and manually flashed the factory image, that's when the problems started, but after a few days I got a notification that the new update was ready which really confused me.
But I installed the downloaded update without a hitch, booted like normal and I just finished transferring a 100MB folder of images to my N7 without an error popping up on my tablet saying something crashed, so I can only assume for the moment until I transfer a larger folder, that the DL'd update fixed the problem.
I've also heard people flashing it again, or side loading it, or even a factory reset would fix the problem, but there weren't many replies as to this actually fixing the data transfer problem.

Problem with downloading ota update kitkat 4.4
I have stock rom and waited for the ota update. It came this morning and while downloading twice the verification failed.i rebooted and the screen came up download failed and had a retry button which i tried to activate and does nothing, The screen has been stuck on the return download for over 12 hours. My wifi connection is strong. Any ideas?

manow91 said:
I have stock rom and waited for the ota update. It came this morning and while downloading twice the verification failed.i rebooted and the screen came up download failed and had a retry button which i tried to activate and does nothing, The screen has been stuck on the return download for over 12 hours. My wifi connection is strong. Any ideas?
Click to expand...
Click to collapse
Take anything I say with a grain of salt as I'm not the greatest guy to ask for help, I only really ask questions here and I'm just going to suggest what to do, if you do it is up to you and I take no responsibility for your device having further issues.
1. Hard reset your device and upon it rebooting, check for the update again and try downloading it again
2. If that doesn't work then back up your data
3. After backing up your data do a factory reset on your device and once you've booted back up to Android, check for the update again and install
4. If that doesn't work, I'm not sure what else to suggest, this is what I would do to try and fix the problem, but for my situation it was unique in that I tried fixing it various ways that seemed to make it worse before it got somehow better.
I hope issuing a factory reset works for you, if not then that hard reset does when you try to redownload the update.

JohnathanKatz said:
Take anything I say with a grain of salt as I'm not the greatest guy to ask for help, I only really ask questions here and I'm just going to suggest what to do, if you do it is up to you and I take no responsibility for your device having further issues.
1. Hard reset your device and upon it rebooting, check for the update again and try downloading it again
2. If that doesn't work then back up your data
3. After backing up your data do a factory reset on your device and once you've booted back up to Android, check for the update again and install
4. If that doesn't work, I'm not sure what else to suggest, this is what I would do to try and fix the problem, but for my situation it was unique in that I tried fixing it various ways that seemed to make it worse before it got somehow better.
I hope issuing a factory reset works for you, if not then that hard reset does when you try to redownload the update.
Click to expand...
Click to collapse
Thanks for your reply back. Yep i also thought of the same 4 step solution as yourself but i also heard from 2 people that had the same thing happen to them and they thought it could be a goggle server problem, So i am going to wait to see if it sorts itself out over the next few days

manow91 said:
Thanks for your reply back. Yep i also thought of the same 4 step solution as yourself but i also heard from 2 people that had the same thing happen to them and they thought it could be a goggle server problem, So i am going to wait to see if it sorts itself out over the next few days
Click to expand...
Click to collapse
That could be too, just thought I'd take a shot, hope it works out for you.:good:

Stock YB1 X90F ROM - Update loop, had to reset now locked out

Hi guys,
So need someones help as ive tried searching everywhere and can not find a stock android rom for the yoga book.
Ive tried the YB1 X90L but the installation fail's
Its my sons Yoga book and he updated the system via settings. Update looked as though it went through ok but then while optimising apps it just kept on restarting and starting again. Like it was in a loop, I decided to hard reset the unit which was successful but now on start up its asking for the last person who signed into Google. Yep my son cant remember the log in
The unit has never been unlocked or messed with, I have a slight idea of what im doing but any help would be much appreciated

v1xz said:
Hi guys,
So need someones help as ive tried searching everywhere and can not find a stock android rom for the yoga book.
Ive tried the YB1 X90L but the installation fail's
Its my sons Yoga book and he updated the system via settings. Update looked as though it went through ok but then while optimising apps it just kept on restarting and starting again. Like it was in a loop, I decided to hard reset the unit which was successful but now on start up its asking for the last person who signed into Google. Yep my son cant remember the log in
The unit has never been unlocked or messed with, I have a slight idea of what im doing but any help would be much appreciated
Click to expand...
Click to collapse
Try this https://forum.xda-developers.com/yoga-book/how-to/lenovo-yoga-book-nougat-stock-rom-t3753942

I had the same problem, and I went to the link, and it worked like a charm, even getting the keyboard working again
THE MAXIMUM POWER said:
Try this https://forum.xda-developers.com/yoga-book/how-to/lenovo-yoga-book-nougat-stock-rom-t3753942
Click to expand...
Click to collapse

(H918) Random Rebooting after Oreo update

Forgive me if this has been posted already before, but I could not find anyone with the same problem after extensive searching.
I bought a used V20 off of Swappa a few weeks before the Oreo update hit. It was working great until I got the notification for the update from Nougat to Oreo. I updated right away and within a few hours of light use, had several random reboots. The phone doesn't feel hot or anything, just reboots mid-use. I can be doing anything, from talking on the phone, to browsing the internet or sending a text. I'd say for every hour of screen on time, I get two reboots. I thought it might be a bad/corrupted Oreo download, so I used the LGUP software to revert it back to Nougat. While on Nougat, the reboots went away. I updated to Oreo again and the reboots came back.
Does anyone have any idea what is happening here? I'll be reverting to Nougat again tonight and keeping it that way until I can figure this out.
Also, the phone is completely stock, except the bootloader is unlocked.
EDIT: Should of also mentioned I've done a factory reset as well.

It may be necessary to hard reset the device so back up thing's and do a hard reset.....

@stinka318 Thanks for the reply. I should of mentioned that I've done a factory reset from the settings too! I edited my original post with this info.

xxravin said:
@stinka318 Thanks for the reply. I should of mentioned that I've done a factory reset from the settings too! I edited my original post with this info.
Click to expand...
Click to collapse
Two ways to reset soft way which is the way you have done or a complete hard reset doing it this way........https://www.swopsmart.com/blog/hard-reset-lg-v20-us996-unlocked/

stinka318 said:
Two ways to reset soft way which is the way you have done or a complete hard reset doing it this way........
Click to expand...
Click to collapse
Oh damn. All my years of using Android phones and I never knew there was a difference. Then again, I've never had problems with any of my previous phones like this so I never needed to learn. Thanks for the knowledge! I'll try it tonight and then update back to Oreo and see what happens.

stinka318 said:
Two ways to reset soft way which is the way you have done or a complete hard reset doing it this way.......
Click to expand...
Click to collapse
No dice. Got a reboot within the first ten minutes after updating to Oreo.
I guess my next option is trying to root it and see if a custom Oreo rom does the same thing. But that laf exploit thread looks like it's gonna take a bit of reading and learning before I attempt it.