Hello, after playing with a tablet I got boot loop so below is solution for this.
This is what I wrote first:
I purchased Chinese tablet called CyberNav, there is link to the website with specs http://www.dracotek.com/cybernav-7-...ps-navigator-ultra-slim-wifi-8gb-gps70yw.html It works great and is worth the money. I received- on request- firmware for it, but it is with .img extension and I have no idea how to get to the files. Attached application PhoenixCard should install it on sd card but it does nothing. So there is my question- can anyone help me with it? Possibly root it? Or update to newer firmware version? I'll post a link to, just need to upload it to my dropbox on my next break at work.
Sek
im pretty sure you need a 3rd party application to flash that firmware, i think you load the .img file into the software on your pc, connect tablet in flash/recovery mode then flash it that way, dont know which software you would need to use though , sorry i cant help further
There is link to rar package http://db.tt/jm7eHfbq
If there is someone who wants to spend some time... Please help.
Bump
Some new infos:
As far I found out tablet is detectable during boot in adb, but it stays in boot loop. I think I've got right usb drivers.
I tried unyaffs the .img file using C:/unyaffs/unyaffs pw08.img but it shows file corrupted (might be wrong method?).
Logcat attached.
Maybe there is someone who will find what it's missing...
I see there is nobody who can help me, so... If some of u have similar problem with chinese tablet- bootloop, can't flash it with LiveSuit our update from sdcard, I found solution which worked for me. Using adb, pulled catalog /dev/data/ to hard disk, then deleted all dalvik cache, installed by me apps and almost every other file from /data on my hard disk. Then typed adb remount, then adb shell rm -r /dev/data/* to delete all data catalog on tablet. Then pushed /data catalog from my hard disk to tablet, and finally adb reboot. And it WORKS! Booting without problems. I wasted 4 days on research how to turn it in flash mode etc. But it was very simple.
Cheers
Sek
Hi, sek111
It was necessary to use the LiveSuite to flash through usb.
Thank you very much, from your post, I found the firmware for my tablet.
An experience with another low cost tablet with Bootloop
I happen to got my tab (Wammy from WickedLeak.org) stuck in BootLoop and was struggling to get a way out for the past 3 days, checking almost all of the posts for this issue!
The tab would stuck on the android loading animation despite running for 2-3 hours and after several hard reboots, it throw-ed following error-
Encryption Unsuccessful
encrytion was interupted and cant complete. as a result the data on your tablet is no longer accessible
to resume using your tablet, you must perform a factory reset. when you set up your tab after the reset, u'll hav an opportunity to restore any data that was backed up to ur google account
Click to expand...
Click to collapse
Despite going for the factory reset, it still didn't workout as the reset activity never completed or proceeded. I happen to be a beginner/noob and was trying my luck with possible solution but was comfortable with ADB stuff and workaround. Well i checked the solution which sek111 offered in this post and it was most closely helped me out. So i would like to Thank him a ton for sharing his solution.
Another method for few others if you don't get through the technical stuff and handling all the flashing tools, i was successful in bringing up the setting window of my tab and chose to do Reset via GUI which worked. Actually my battery got drained out to 7% and a popup message for same displayed while i was on the above error page. I selected the "check battery" option from that pop up and got my way out via factory "Backup and Reset" option under settings.
I hope this might help few people if not all! But the XDA forum is great and everyone will find a solution here. Cheers!!!
So I got this wm8850 chinese generic tablet. The camera is in the front in the middle (wide). It was shipped to me with 4.0.3 in boot loop. I soon found out that it boots into safe mode when I usb to pc. This is the furthest I've gotten with it so far. I can adb into it and have already tried to wipe data. It seems like since its from factory screwed up that a may need to reload the firmware or the os or something. Im kind of a noob because I only have my droid x. I've gotten it out of a boot loop before but I also knew what I had done to cause it so I fixed it. I tried to follow seks adb commands but im too noob to do it I guess. I was able to wipe data and dalvik-cache. Issue still occurs . If anybody can give me some adb commands than can help I would greatly appreciate it. Im fairly sure that I found the firmware elsewhere on xda. I thank you guys for any help at all you can give. I don't wanna send it back without trying everything software related as I can, but ill send it back if I can't fix it or if I brick it
Sent from my DROIDX using xda app-developers app
i have same problem in my china mobile.. dupad k1 ... after in installed new boot screen, device stuck in boot... please help to recover my device in step by step....
Hi everyone, i have a problem with my Sony Tablet S, suddenly it's freezing and when i try to turned it back on it stuck on booting screen (with sony logo ).
then i checked to the internet and i found that i have to hard reset it, by holding down the + volume button and power button in order to get to the Android System Recovery. But then again no clue, i have tried reset to factory setting and keep stuck on boot screen. its frustating.
Prompt on my screen :
E: Fail to read boot logo flag
E: Cant Open / Dev/block/mmcblk0p5
(No Such file or directory)
E: Failed to Mount /cache (No such file or directory)
E: Cant mpunt/ cache/recovery/command
E: failed to mount /cache (No such file or directory)
E: failed to mount /cache (No such file or directory)
On the Android System Recovery there is Update System from SD Card, is there any possible ways that i can put Honeycomb virtual image on to the SD Card then make it as a bootable device, so i can boot from my SD Card.
Please help! thanks a lot !
If it was previously on Honeycomb, and you could find someone with a rooted Tablet running ICS from the same region and same version (WiFi vs 3G etc) then you might be able to recover it.
You would need to get them to install the rescue-bcakdoor on their device, allowing them to download the OTA update file. You could then try and ABD push that file onto your device's storage and install from the Recovery menu.
Just a thought! Otherwise, you could try sending it back under Warranty or something..
Disclaimer: This is by no means a tested solution and you may want to check on a few things before trying this. I take no responsibility for anything that happens as a result of this procedure. As always, I recommend trying Sony's Warranty and Repairs department for an official, warranty-valid repair.
Same problem here
I have the same problem with my Sony tablet s, i udated it to 4.0.3, it was working fine till yesterday when it would not start, its stuck at the logo, ive tried factory reset, but nothing changed, i did not have a recovery data either.
i would appreciate if some one would guide me how to fix it, either upload the ota update file, can i root it some how or flash it by using an UPDATE.Zip on memory card and try system recovery using android 3.2.1 ota file. please help
help me too
I got the same problem yesterday(29. May), it might be google did something via OTA. I'm using China version, changed region to US and upgraded it to ICS, but unfortunatlly, can't root in ICS now. Yesterday, it suddenly stuck and can't reboot any more. always stuck on Starting Screen. I called Sony Customer Center, and follow their struture to reset the tablet, but not help. Can any one help me to fix it....
InMyEyes said:
I got the same problem yesterday(29. May), it might be google did something via OTA. I'm using China version, changed region to US and upgraded it to ICS, but unfortunatlly, can't root in ICS now. Yesterday, it suddenly stuck and can't reboot any more. always stuck on Starting Screen. I called Sony Customer Center, and follow their struture to reset the tablet, but not help. Can any one help me to fix it....
Click to expand...
Click to collapse
I'm not too sure about easy fixes (I'd have to work through it a lot more, which is tricky without the error), but I know that it can't be Google. Google neither could nor would release an OTA package that aggressively downloaded to the device, installed and then broke something at system boot-level. Doesn't really work like that.
arso123 said:
I have the same problem with my Sony tablet s, i udated it to 4.0.3, it was working fine till yesterday when it would not start, its stuck at the logo, ive tried factory reset, but nothing changed, i did not have a recovery data either.
i would appreciate if some one would guide me how to fix it, either upload the ota update file, can i root it some how or flash it by using an UPDATE.Zip on memory card and try system recovery using android 3.2.1 ota file. please help
Click to expand...
Click to collapse
If you have this problem and you don't have a rooted tablet, you won't be able to downgrade. you must send it back for repair, since it can't reboot normally, sony won't detect any self bricking tracks, so warranty is still in the game, had the same problem to with Region Changer somewhere in V2.1 or something.
Goodluck.!
I have the same problem too, and I can't send it to sony service because it's not on sale in my country. I look forward to deal with it through sd card. Can't use USB connection. (not rooted too).
I have a similar issue, but mine seems to be stuck on the bootscreen animation (with the swirly yellow lines traveling from one side to the other). Haven't tried the power + volume up yet, will try that to see if I can hard reset. I was rooted on HC, but decided to take the ICS update so I believe that I'm unrooted at this point--still unsure though.
Regions - guarantee
Same problem here
Have tried all of the tips in this post...Still stucked with the Sony logo..
I bought my in Krakow, Poland, but lives in Norway... it has the /P on the back instead of the /N.
Do you know if the guarantee is worldwide? If I can drop this to a Sony shop in Norway?
I dont have the receipt anymore, because I claimed a refound from the company I work in...
Thanks
Rune
What color is on the tabblet?
Is it green or red?
I think if its green, there is no fix.
If its red, use the battery completely then recharge it until green light.
Try after that. Mine was fixed whit same problem.
Well, I've tried everything that I've found on the forums/internet to no avail. Just contacted Sony support and am having them send me a box to ship it back for repairs (luckily I only bought it last December). The operator on the phone says that it's most likely a hardware issue if it doesn't get pass the "Sony" logo. This leaves me a bad taste with Sony, won't be buying a tab or phone from them again.
I have had the same issue, so will be going back to Sony soon for a repair. Disappointed as I've only had it 6 weeks, but as long as the repair service is good I'll be ok.
Same problem here tonight. Unreal. Purchased last August. Won't buy another Sony again. First it was the constant soft resets in order to power on. Now this.
I got the same problem on my sony tablet s device too model SGPT111US/S anykne fixed this erorr yet?
Now i can't do any things because it stoped at logo SONY, please help, any flasher or rom support this device from pc ?
Just got off the phone with tech support. Couldn't even get it to do a factory reset. Stuck on system restore screen. Sending it in for repair. Very disappointing. Paid $500 for this thing. Didn't last a year. A few more weeks and I would have been out of luck on the warranty.
SCIONTX said:
Just got off the phone with tech support. Couldn't even get it to do a factory reset. Stuck on system restore screen. Sending it in for repair. Very disappointing. Paid $500 for this thing. Didn't last a year. A few more weeks and I would have been out of luck on the warranty.
Click to expand...
Click to collapse
I Have no money for this, and i'm in vietnam, can't contact with any one.
No way to fix this ?
update, when i'm enter recovery mode, i enter ADB, run via cmd, adb can send reboot comand: adb reboot :cyclops:
then the tablet reboot, but still loop at sony, and i see windows is try to install MTP USB Device but un successful.
Any ideas ?
goldenfish said:
update, when i'm enter recovery mode, i enter ADB, run via cmd, adb can send reboot comand: adb reboot :cyclops:
then the tablet reboot, but still loop at sony, and i see windows is try to install MTP USB Device but un successful.
Any ideas ?
Click to expand...
Click to collapse
What version did you have before boot loop? 3.2.1, 4.0.3?? Try to flash a us rom from recovery. You can find in my signature link.
Good luck
Chur
stifilz said:
What version did you have before boot loop? 3.2.1, 4.0.3?? Try to flash a us rom from recovery. You can find in my signature link.
Good luck
Chur
Click to expand...
Click to collapse
it's 4.0.3,
custom rom from your link is zip file, i don't know how to flash this file, because the tablet can't mount sdcard ????
goldenfish said:
it's 4.0.3,
custom rom from your link is zip file, i don't know how to flash this file, because the tablet can't mount sdcard ????
Click to expand...
Click to collapse
Oh didn't realise you can't mount, that is an issue then. Sorry you may be soft-bricked
Hope you can find something
Chur
Hi, i have little (or maybe big) problem with my Vienna. Yesterday phone asked for Wireless Update and i allowed it. So Update started to install, almost finished it. But at the end it just gave error and rebooted and then there is just Ulefone logo after what it gives No command error and just continues to bootloop. I tried to wipe cache through recovery and even factory reset. It just wipes my data and thats it. No factory reset. I cant restore backup either. It just says no SD card. I'm kinda new Android user, so i dont know what to do next. Kinda frustrated about that update. It basically bricked my phone. Anyways phone is running stock 5.1 version. Thanks who can help me with this :fingers-crossed:
dUBZ1337 said:
Hi, i have little (or maybe big) problem with my Vienna. Yesterday phone asked for Wireless Update and i allowed it. So Update started to install, almost finished it. But at the end it just gave error and rebooted and then there is just Ulefone logo after what it gives No command error and just continues to bootloop. I tried to wipe cache through recovery and even factory reset. It just wipes my data and thats it. No factory reset. I cant restore backup either. It just says no SD card. I'm kinda new Android user, so i dont know what to do next. Kinda frustrated about that update. It basically bricked my phone. Anyways phone is running stock 5.1 version. Thanks who can help me with this :fingers-crossed:
Click to expand...
Click to collapse
This had happened to me too. Try to update it again trough sd card by getting into recovery mode (youll find vids how to get into recovery mode). The 6.0 version isnt very good (it can hanlde more apps though, I have ~500 apps). BUT, MOST IMPORTANTLY; after the upgrade factory restet the phone (more than once would, I think, better). I didnt do that and I think I should, since that may enable me now to get again in recovery mode (yeah, now buttons dont work, Ive to do this via PC), my phone maybe would be more compatible with PCs and I may was able to root it. By the way, there is another xda forum about ulefone vienna where you could get more answers and Im not a professional. I hope I helped (with some months delay).
Oh guys, I badly need your experties. Just as I have in the title, I have a rooted Meizu M5 Note. I rooted the phone believing that I can do much more if it is rooted. But in 6 months of trying to understand what I can do with this said rooted phone, I realized now that there are not much to do with it... Probably because of the brand, so I decided to unroot
The rooting process was from here: giving me error so if requested, i'll give the link.
I have an Android build 7.0.0.0
So here is my issue:
In the same site, I found that I can unroot.. yes, UNROOT the rooted model of phone using superSU by going to its Settings and clicking unroot (or Unroot all something..). It took a bit while, so I decided to restart the device. Yes, while SuperSU was trying to unroot my phone.
Upon restart, it now could not boot.
I allowed 30 minutes, the screen only shows Flyme logo with a spinning circle. So from here, I made up my mind to perform the factory reset/restore:
Turned off Phone > Press and hold Power key + Volume Up... until I reach the screen with options to:
-Update system.
-Wipe data.
I selected Wipe data, for it will reset the system settings. It will now show the
"Wiping data.
Please dont turn off the phone, or it may fail to boot"
It will only last for 2 seconds - and will then again reboot and stop in Flyme logo with a never ending spin below.
_________________
It was already the factory reset, which I thought should help, but it wont work.
_________________
Things I tried:
- Used ADB to flash an offcial update rom from the flymeos.com, but the ADB Flashtool would not read the device because the USB Debugging is turned OFF.
- Googling any possible solutions, but cannot find any - nor any known programs that will allow me to read the not booting phone.
- Fast boot or safe mode, which only wont proceed.
- The Recovery Menu (the un-clickable one) must be locked by the manufacturer.
Can anyone please tell me:
- Is there anyway I can access the phone's drive so I can put the Update zip folder, which will help me to use the 1st recovery option "Update system"??
- Do you have any software that can help me enable the USB debugging when the phone wont boot at all??
Thanks guys..
All the help I can get will be best appreciated.
I tried posting this to forum.FlymeOS, but no one seems to have any interest on helping.
It is now you, that i think can help.
This is my Only phone, and cant afford to lose it...
Same issue with my Meizu M5 Note. I tried a tutorial on how to unlock it's bootloader. But after going through the first step, the SP Flash tool showed some error on how it does not turn on our go recover mode or anything... In really sad
Somebody please help!
RogueDiamond195 said:
Same issue with my Meizu M5 Note. I tried a tutorial on how to unlock it's bootloader. But after going through the first step, the SP Flash tool showed some error on how it does not turn on our go recover mode or anything... In really sad
Somebody please help!
Click to expand...
Click to collapse
Looks to me that you've bricked the phone.
jwoegerbauer said:
Looks to me that you've bricked the phone.
Click to expand...
Click to collapse
Yeah... Well, atleast I can ask for new phone now! LMAO