yashsingh1/xdaforums huggingface dataset:
[Android General] bandras6:
Reboot again and again

Hi Des!

I follow your list and the tablet is rebooting every time! :crying:

I simply can't turn it off!

Any suggestion?

Thanks, Andrew
[Android General] CTCNetwork:
Hi,

Power it off first. When powered up press and hold the power button. Select Power off from the menu.

Get the laptop/PC ready with the image, plug the usb cable into the laptop/pc and then the tablet.

You should see the green battery icon on screen showing charge state.

When it has gone, press and hold the power again for about 2 seconds.

Then try the firmware update.

Des. . . ;)
[Android General] bandras6:
Hi,

Thanks for your help, but when I "press and hold the power again for about 2 second" the tablet is rebooting!

With a shorter power press i can switch the secreen on/off, but a longer press reboot it every time!

My battery icon is a big blue one, not a green one! Maybe i have a different version?

Model number: Lenovo A5500-H

Android: 4.4.2

Build number:A5500H_A442_00_025_141027_ROW

Hm?

Andrew
[Android General] CTCNetwork:
Hi,

All I can suggest is trial and error. It took me a a couple of goes to get it right.

But when you see that battery icon you know the device is on. Maybe a 1 second press? If I remember, you may feel a slight vibration to indicate that the tablet goes off. Soon as you feel that let go of the power button.

Mine was an A8-50 5500H but is now HV :)

Des. . . ;)
[Android General] rkalyancwa:
Quick on flashing A5500HV ROM in to A7600H?

Hi Gurus,

I m new to this forum, and would like to know the possibility of flashing this ROM (A5500-HV) to A7600H, as you know this is same as the case of A5500-H (with No voice feature), but I m ​​not going use as replacement of my Phone. would like to keep that Calling function with my another number as Back up at Home.

Regret, if I posted in the wrong forum and thanks for all your Good attitude on sharing your Knowledge. Much appreciated.

Regards,

KS
[Android General] CTCNetwork:
Hi,

looking at the specs of that device ( http://www.gsmarena.com/lenovo_a10_70_a7600-6282.php ) the screen is bigger but the same resolution. The processor is a quad core and GPS is available on both too so pretty much the same. Specs for the A8-5500 here: http://www.gsmarena.com/lenovo_a8_50_a5500-6281.php

Theoretically you can use the ROM but before you went ahead and tried you would be advised to get a copy of the ROM for that device first, JIC something went amiss.

Again the Russian forums seem to have more info on this and windows drivers too: http://lenovo-forums.ru/topic/8396-lenovo-a10-70-a7600h-прошивка-a442-001-019-140807-row/

Further searching on that Russian forum may find an HV ROM specific to your A10? :)

Des. . . ;)
[Android General] rkalyancwa:
Hi Des,

Thanks for your reply, after searching a lot as you highlighted I also end up on the same A7600h ROM & A5500HV Rom. Also note A7600HV is available only in China.

And also My query was more about, if I flash A5500HV on A7600H (As specs seems to be same across), did you see any risk involved (like Bricking or any hardware failure), I m planning to explore more if possible.

Thanks once again for your reply.

Cheers...

KS
[Android General] CTCNetwork:
Hi rkalyancwa,

Given the hardware similarity, I suspect that you'd probably get away with loading the A8 ROM.

I would, however, like to have a copy of the original ROM for the A10 available if things went awry.

Des. . . ;)
[Android General] rkalyancwa:
Hi Des,

No luck, after flashing, that was not booting at all. So Plan B - Restored original.

Anyways thanks for your guidance, please let me know if you come across A7600HV ROW CN firmware somewhere...

Thanks again.

Cheers..

KS:fingers-crossed:
[Android General] pezhman8054:
Can anyone know how to root lenovo A5500 runing 4.4.2???
[Android General] grekko44:
Here is the perfect tool, did mine in minutes.

http://www.kingoapp.com/
[Android General] cracktech:
MTK Flashing and ROM for newbies.

I am a middle level ROM modder for LENOVO ROMS of which until now are mostly on MTK SoC. In 2015 they will be shifting to Qualcomm Snapdragon 801.

1. In order to start properly a flashing proces for MTK devices the battery needs to be removed first (there is no chance of that in the pad model) When we flash MTK firmwares on phones/phablet (upto 6inch) it is easy to remove back cover and then battery.

That is why the problems that you guys are facing here. Pressing any buttons combination at the start of a flashing process is a no,no for us .(MTK devices are rarely hardbrick unless a hardware issue is involved- all we need is to standby a factory ROM as backup to resusitate a "dead phone")

FYI : DONT TRY TO SUBSTITUTE ANY ROM FROM OTHER MTK MODELS/BRAND THAT EVEN HAVE SIMILAR HARDWARE (99% clone) ONTO ANOTHER. IT DOESNT WORK THAT WAY UNLESS LIKE THE LENOVO A880/A889 (which has similar 99..9% hardware, except that one has 5Mp camera the other 8Mp camera- that one can be substitute otherwise disaster!)

You can change and flash together with the factory ROM a customs "recovery.img" but have to move out the "Checksum.txt" file out of the firmware list since the customs "recovery.img" doesnt normally come with (md5) and for end users it is daunting task to rewrite the md5 signature into the "checksum" file , so removed that (I normally use TWRP Recovery to replace the factory recovery. You can either flash it together with the firmware now or later thro MObileUncleTool(download from Playstore only for MTK devices) >> Update Recovery >.(select TWRP/CWM"recovery.img"

I just happened to bumped into this forum thread after hunting around for any ready made TWRP Recovery. cioz I am expecting a delievry of A3300 /A5500AH anyday now for my daughter. If I couldnt then I will use "Magic TWRP maker" app to produce one from a working A3300 (my daughters!)
[Android General] cracktech:
TWRP Recovery for LENOVO A8-A5500HV/H WW only (not CN)

This is the TWRP Recovery cooked up by a Russian modder (use it at your own risk, as I heard that backup are incomplete but NVRAM backup is working alright the ones to watch out are the data sections)

I am attempting to do my own TWRP Recovery (but it will take time) and I will test it on my own device first before releasing to public.

I have a copy of an OTA version v024 HV-WW that is to install on top of an existing Android 4.4.2 through TWRP INSTALL Flash.zip format if anybody is interested.(File Size 580Mb)

My understanding is this for A8-5500 MTK 6582 SoC only anything other than that I dont know (like MTK 8382 A8-5500)
[Android General] cracktech:
What ? Is it an MTK 8382 or MTK 6582?

I am in a bind after dismantling the Russian firmware A8-HV/H they clearly stated there inside the build.prop that it is an MTK 6582 firmware device but the ones we are (or at least this side of the world is being dished out it is MTK8382) so which is which?? Theoretically it cant be running flawlessly on a such a "build.prop" (6582 on a 8382 SoC devie and vice versa). Somebody please enlightened me is there another variant? Since the A8-5500Hv/H firmware is meant to be run on 6582 and before I flashed a TWRP Recovery meant for the Ruskies device onto my 8382 device. I have th v024 Hv firmware with me and the TWRP Recovery to be flashed onto my daughters newly (I bought) bought Lenovo after wrangling with her over an ASUS (intelInside) or to my more familiar MTK SoC.
[Android General] doveman:
Interested to know if you've made any further progress cracktech, as I bought an A8-50 5500-H for my Mum but don't want to risk messing it up and I don't really want to register with Russian forums that I can't read either!

I guess one of the many hardware info apps would show exactly what chip is inside wouldn't it (Amazon for example says MTK 8121 and MTK 8382, which isn't exactly helpful)?
[Android General] doveman:
Also, is there any reason for me to try and capture the OTA updates? I've already done the 500+ MB one and I'm on A5500H_A442_000_010_140508_ROW at the moment but there's another 100+ MB update queued.

I guess neither are full firmware images so I wouldn't be able to use them to flash back to factory, in which case I don't suppose there's much point capturing them. I guess to do that I'd need to root and use a file explorer that can access the location where the updates are downloaded to but I won't bother unless there's a reason to.
[Android General] cracktech:
I have completed the prerooting of the 024 ROW version firmware and doing a last minute 2x 3x check on my flashing script it should be uploaded to my site . I found out that the Rusian ROW firmware have some issues and have no KitKat camera only stadard camera through the Gallery2app , I have added this in and updated all Lenovo apps SycniT/Shareit,iDeafriend (which is sorely missed on this model, I port it over from my Vibe2 firmware). once I uploade it this next week will also post an update here.

but the TWRP Recvery is a a 2 part install process once to install the slighly defective version and then use again the TWRP install a patch version to correct the TWRP and then it is all Ok. I can say that for a fact because I only support devices that I own and this is one of them given to my daughter (hard to get the thing out of her hands to do debugging but I managed)

It is a good buy ,cost effective as with any Lenovo. (if you ever been on needrom.com) you'd find over a thousand Lenovo stock and mod ROMs but for the rest it is only bout a hundred or so postings.
[Android General] doveman:
That's great to hear cracktech. We're very lucky to have people like you here who own the same devices and know what they're doing and can work these things out for the rest of us :)

It was a concern that there might be some issues with the Russian firmware and obviously I wouldn't be able to discuss them on their forum as I don't know any Russian, so I'm glad I waited for you to look at it.

I don't care about having to install TWRP in two stages, you've done all the hard work so it would be a bit churlish of anyone to complain that it's too hard to do that!
[Android General] alcio313:
quick link to ROM A5500-H V

https:/ /cloud.mail.ru/public/0526b8da5fba/A5500HV_A442_000_017_140709_ROW.rar
[Android General] cracktech:
A8-A5500 024 ROW ROM installation

Please download this zip file (includes TAB Drivers/ SpFlashTool/ TWRP already installed/ an updared TWRP Recovery for First round of flashing, instructions included inside on how to update TWRP) the non rooted ROW build024 ROM : http://www.4shared.com/zip/jilTrm20ce/EMERGENCY_RECOVERY_A5500hv_A44.html (download the EMERGENCY_RECOVERY_A5500hv_A442_024_ROW_TWRP_Stock.zip unzip this file and read instructions within)

After that is done please download this partial 024 TWRP/CWM flashable zip to ROOT the Tablet and installed updated Lenovo Apps. plus other cosmetics modifications (not full blown mods!): http://www.4shared.com/zip/soqPPDOkce/FinalA8RootMisc.html

My 2 FB page - 1- for LENOVO Phones and one for General Tabs LENOVO/ASUS/PiPO/ONDA/ZENITHINK :

TABLET :https://www.facebook.com/groups/652466378195190/

PHONES :https://www.facebook.com/groups/cracktech/?pnref=lhc

For your Info any MTK /Chinese phones/tablets that has no root exploit for the firmwre you can EASILY Root it with VRoot.exe, it will install RootMaster (Chinese Superuser app) on the phone via USB OTG (need to be enabled first) and after that you download SuperSU from Playstore (assuming that you have Playstore) if not you can already add all GApps to your system folder and delete out Chinese bloatware since it is already rooted. Then SuperSU will kick out the Chinese Superuser app.>>DONE!! Except that you dont have busybox installed yet but it is already rooted by any standard.
[Android General] doveman:
Thanks cracktech, it's great of you to share this with us :)

I decided to root with Vroot first so that I could use Online Nandroid Backup to make a backup before I did anything else but unfortunately that doesn't have a profile for this device yet. I've sent the developer a report so he might update it soon but I don't think I can wait ;)

Regarding your instructions, the second link you posted doesn't work. Is that meant to be to LENOVO_A8_50_HV_024_UPGRADE.zip ?

As for SPFlash, it's a bit confusing. I found your PDF on your facebook which helps but I still want to make sure I've understood before I proceed.

When I launch SPFlashTool, it loads with the Download Agent field already filled (I can't read exactly where it points to as it's too long for the window). Then I click on the Scatter-loading button and browse to the target_bin/ folder and select the only file in there that shows up (MT6582_scatter_LVP5-3G-ROW-Voice.1.024.01)?

Then I leave all the files ticked and tick the DA DL All with Check Sum box?

Then I shut off the tablet and click what in SPFlashTool, Firmware/Upgrade or Download?

Then once it has flashed that and booted, I should reboot to TWRP and flash update_TWRP_281_A8-50.zip from the SD card?

Then after booting again I should reboot to TWRP and flash LENOVO_A8_50_HV_024_UPGRADE.zip to convert it finally from -V to -HV firmware?

I'm currently on A442_000_010 but the next patch has downloaded, I just haven't installed it yet. If I proceed with flashing, will it "reset" the download/patch status, so that it won't keep prompting me to install the patch after flashing, as obviously doing so would screw it up?

By the way, Mobileuncle MTK tools is incompatible with my device (doesn't even show up when searching on the tablet) so I can't use that to backup my IMEI. Do you know of any other compatible apps that can do this? (EDIT: I managed to backup the IMEI with MTK Droid Tools).
[Android General] doveman:
OK, I tried to flash the first part with SPFlashTool under Win7, after installing the drivers but I just get an error "Image Recovery checksum failed! Checksum reference value (0x5c45) in the config ini file".

I tried multiple times, trying to get the green circle up you mention in your PDF but it didn't make any difference and it just gives this error every time.
[Android General] cracktech:
In the "target.bin" folder remove the "Checksum.txt" file from the folder and reflash , this is because the Checksum refers to the original "recovery.img" file , this one has the TWRP version 2.7.1 which has unknown checksum . After the flash it should install the TWRP ver2.7.1 then you have to INSTALL "upgrade_TWRP_281.zip" to upgrade to version2.8.1 from within TWRP . This has to be done as the TWRP ver2.7.1 on A8 has backup/restore flaw.

I doesnt matter if in Vroot it doesnt have our device profile just press the "ROOT" button and it will root the device but it takes slightly longer than other MTK devices. I dont understand MobileUncleTool is not compatible with A8,?? I have MobileUncleTool on my A8 sitting there (but after the Vroot). As you already known MobileUncleTool is very specific to MTK SoC devices and should be compatible will All and any MTK devices.

If I erred in not removing the "Checksm.txt" file in the "target.bin" folder, I apologise.
[Android General] doveman:
OK cool, that worked :)

I was also able to boot into TWRP and update that, although it's a bit fiddly as I seem to have to hold Vol+ and then it boots to a screen which lets me select Recovery, Fastboot or reboot, so I select Recovery and then it boots to TWRP. If I hold both Vol+/- when powering on as the PDF suggests, then it boots to the Lenovo System Test menu.

TWRP asked me if I wanted to install ROOT when rebooting but I said no as the PDF doesn't mention that and suggests VRoot or rootmaster.apk instead. I'd rooted it before flashing with Vroot and that worked fine, although there's a bit too much bloatware for my liking in that program, so I'm going to try the apk this time instead. For some reason though, Win7 won't let me access the tablet to transfer files to it, as Device Manager shows Lenovo A5500 and MTP USB Device as not having drivers installed or some error with the driver. I think I've installed all the motherboard drivers but I still have PCI Simple Communications Controller and Unknown device showing as not having drivers installed, so I'll probably just boot back to Win 8.1 and see if I can transfer the file from there.

EDIT: Sorry, in my previous post I meant Online Nandroid Backup doesn't have a profile for the A8-50 yet, not Vroot :o

Yeah, for some reason MobileUncleTools doesn't show in the Play Store when searching on the tablet and if I search the Store from my PC browser, it shows it as not compatible with any of my devices, including the Lenovo.

---------- Post added at 04:42 PM ---------- Previous post was at 03:45 PM ----------

rootmaster.apk didn't work. It actually installs apotide and then iroot, which said it had worked but after rebooting, Root Checker shows it as not rooted.

So I'm trying Vroot under WIn 8.1 again instead but that just says Connecting for ages and then says No Device Connected. I've got USB Debugging enabled.

I don't know if it matters but Device Manager shows an entry under Other Devices for Lenovo A5500 but with an error of no drivers installed whenever I connect the tablet. I can uninstall that and still browse the tablets internal and external storage from Explorer.

I haven't flashed LENOVO_A8_50_HV_024_UPGRADE.zip yet, is that the correct file that your second link in your post was meant to go to?

EDIT: OK, I booted to my clean Win 8.1 VHD and Vroot worked from there :) So if you could just let me know about flashing that Upgrade.zip, that's all that's left I think.
[Android General] doveman:
Just a couple more questions :)

Is there a way to make it boot to TWRP when holding Vol+ (or -) when powering up, rather than having to go through the default screen and select Recovery from there?

Can TWRP mount encrypted storage? I believe it's meant to be able to, which is one of it's advantages over CWM but I haven't found a way to do so with my Moto G and don't see any prompt to enter the password to decrypt it.
[Android General] cracktech:
You can live with that version!

Since you have flashed the A8-024 version already with TWRP only thing now is to update the TWRP to version 2.8.1 (this is a MUST/COMPULSORY!) and then to root it use TWRP to INSTALL this zip file : https://www.4shared.com/zip/DN2b9t4Vce/FinalA8RootMisc.html

After that to correct any errors in the SuperSU installation download and INSTALL (thro TWRP) the "SuperSU_2.44Update.zip" from my PUBLIC Folder , I think it is in the "ROOTing" folder and so it finalises your A8 Installation.. If you want the OTA provided Launcher it is attached below : "LenovoLauncherRow_hdpi.apk". This given as an OTA additional apk for version 024.

By the way you described your fumbling to get to Recovery mode it seems that you have not read my instructions fully, I said press the Vol+ and then Power unlike ordinary MTK phones where you press Vol+/- then Power. However I have attached a "RebootRecovery.apk" for your convenience and also MobileUncle Tool! Best of luck.

Nope I havent found any encrypt/decrypt options in my MTK TWRP Recovery except for MD5 .
[Android General] doveman:
Thanks. I've actually already flashed your update for TWRP to v2.8.1 and rooted it with Vroot. As I tried with rootmaster.apk first, it left SuperUser installed as well as SU but I just disabled SuperUser (couldn't see a way to uninstall it completely).

Yeah "fumbling" is right :) Sorry if I misread your instructions. So should holding Vol+ and Power go straight to TWRP or is it normal that I have to go through the default menu and select Recovery to get to it? I only ask as my G300 goes straight to CWM and I think my Mum's Sero 7 Pro goes straight to TWRP as well.

EDIT: I found a nice app called AppMaster which lets me uninstall both user and system apps, so I was able to uninstall Kingoroot and iRoot with that, which got rid of the SuperUser app and now I just have SuperSU. That's having trouble updating the SU binary now though. It worked before after I installed it but now when I select Normal it fails, even after rebooting as it suggests. Hmm, maybe I'll have to decrypt the storage again to flash the zips from your last post, as TWRP can't do it whilst it's encrypted :rolleyes:

EDIT2: Actually there doesn't seem to be a way to decrypt other than to Factory Reset, so if you know a way to flash those zips without TWRP and having to decrypt, please let me know but it's no big deal if not as I haven't done much yet and I can backup what I have done with Titanium.
[Android General] BrS71:
!!

THANK YOU!! I LOVE YOU!!!!!!!!!! :highfive: :laugh:
[Android General] cracktech:
I told you that after the flashing process , all you have to do is go back into TWRP select this file to root the A8 no need for Kingo/IRoot or any other Chinese Root app like Kingoroot it will install a system app named Kingoroot.apk in the system most other intelligent Chinese developer they just use the universal "Superuser.apk" which makes is easier to replace with Western based "Superuser.apk" (SuperSU ect). I hope that you do flashed the http://www.4shared.com/zip/DN2b9t4Vce/FinalA8RootMisc.html Zipped file to root since you already have TWRP installed. this is custom made to fit the need of Lenovo ROMs and will install "busybox" (which NO Chinese Superuser will install) and other files in the "xbin" folder. Before you flash this you can check that there is about less than 20 files in the "xbin" folder after you have installed the zip files you will find that there is close to 60-70 files was created by "busybox". This will make ALL western app (i.e Playstore) to run without a hitch. If running with Chinese Superuser some apps will say that either your root is not correctly configured or you have no root.

Try this REBOOT app : https://play.google.com/store/apps/details?id=com.siriusapplications.quickboot

Sorry mate We will NOT go straight to TWRP page we will still have to pass thro that safety page (where the letterings need to be read through a microscope but I think it is for the best for noobies!!) Chheeerios. Remember Share and Share alike.Any other comments/condemnations you can contact me at my FB : https://www.facebook.com/groups/LENOVO.TABS.n.GEN.TABS/
[Android General] doveman:
Yeah I know you said to flash that file to root it now but the link in your post #36 http://xdaforums.com/showpost.php?p=58181619&postcount=36 was broken and as you recommended Vroot in that post, I used that to root. I installed busybox manually as well so there are lots of files in xbin.

Interestingly (or maybe not), I've uninstalled all the root apps I could find (so that I could flash your root zip instead) and Root Check now says it's not rooted but all the apps that require root still work and trigger SuperSU when necessary.

I do intend to flash your FinalA8RootMisc and SuperSU_2.44Update zips but as I said, because I've encrypted the storage I can't do that from TWRP without doing a factory reset first to decrypt the storage, so I was looking for a way to avoid this. I found Flashify which says it can flash zips without TWRP/CWM but it doesn't work for me and just reboots to TWRP to flash stuff (maybe in the paid-for Pro version it doesn't need to do this). However, I came across Flash Gordon http://xdaforums.com/showthread.php?t=2250555 which sounds like it could work but I was a bit worried by:

"Q: Why can't I flash a Rom with Flash Gordon ?

A: Because when some system files are replaced while the device is running, it causes it to crash and will stop in the middle of the installation, resulting in a bootloop."

Now I know neither of your zips that I still have to flash are "a ROM" but as I don't know what files they install/replace, I'm worried I might get stuck in this bootloop, so maybe you could advise whether you think it's safe to use it for your FinalA8RootMisc and SuperSU_2.44Update zips or if I should just do a factory reset and flash them from TWRP?

Oh and no worries about having to go through the "safety page", I just wanted to check that was meant to appear and I hadn't done something wrong :)