yashsingh1/xdaforums huggingface dataset:
[Miscellaneous Android Development] MonsieurD:
fls files are file system images and I don't believe there are any programs that will open those files in a friendly way. You can always use something like hexedit to edit the raw file, but I don't think that's what you're looking for.

Can you tell us why you want to open those files?

If you just want to install the firmware, then all you need to do is follow the steps as explained in the file linked in the first post.
[Miscellaneous Android Development] boar-hooligan:
I want to copy google Play and google servises with flash and add a couple of firmware applications
[Miscellaneous Android Development] Vadim Shved:
This tablet several times a day goes to deep sleep and cant wake up anymore...... DEEP SLEEP PROBLEM
[Miscellaneous Android Development] eidoil32:
Hi guys,

i have a wired problem, i rooting the device but now i can't install apps

what to do?

just updating, i flash the firmware you upload here, it's goes hard but i succeed and after that i root again and now i can install apps from google store and apk files.

and another thing, the storage that full by it self solved also, maybe the chinese apps do that thing.
[Miscellaneous Android Development] jmo:
Eidoil32,

I am experiencing the same issue, I am unable to install apps via adb or via Play Store ("Unknown error code during application install: "-504)". I have not been successful in flashing the tablet using the Intel Flash tool. Everything goes well up to the point of actually flashing. It seems that the PC isn't seeing the tablet. Any suggestions for flashing?

Also, I have read elsewhere that IMEI gets wiped when flashing. Are you still able to use the cellular features?

Thanks.
[Miscellaneous Android Development] stegg:
firmware v 1.13

a new firmware has been released

https://yadi.sk/d/6boIFS_-jsLkm

it should solve the random-freeze deep sleep problem

I flashed it with instructions in first post and everything was OK, i didn't loose imei :good:
[Miscellaneous Android Development] mircea1380:
I tried last night to install the firmware directly in the tab by renaming the archive as update.zip... No luck, of course.

Do you happen to know if this firmware will also come as OTA?!
[Miscellaneous Android Development] jasonx3:
Having the same issue as others with play store. will system restore wipe the SU binaries and fix this error or do i have to go through ROM flashing?
[Miscellaneous Android Development] donbarlone:
I have the same problem with the 504 error after gain root , there is some possibilities to resove this problem ? Thank you

After flashing I could install apk from Play , but know I have a problem with SIM card , it appears no service , it seems that 2100mhz- WCDMA band has been erased someway

update edit:

I used Digma_SoFia_IMEI_recovery and restore the IMEi. Now the network works. Thank you for this r_e_n_e
[Miscellaneous Android Development] r_e_n_e:
I had a green screen on my Chuwi Vi7. I could not start it. I got only CHUWI first screen and that was all. I was able go to Android system recovery mode, but sdcard was not able to connect and factory reset did same result (green screen). I was able to run ADB mode, but I hadn't drivers. I found them and I installed successfully adb driver from many tries. I 'm adding them into the attachment DRIVERS CHUWI ADB.rar. I have Win7 64-bit OS.

Then I was able to upload official ROM "update.zip" from weblink http://www.needrom.com/download/chuwi-vi7/. Via adb command "adb sideload update.zip" (adb.exe and update.zip ROM must be in same folder).

Now my Chuwi Vi7 is back and alive.

BUT! When I start WiFI, It says Turning WiFi on... and that's all. See attached pictures.

I found that IMEI and IMEI SV information is Unknown.

Update - 19.11.2015

I was able to change an IMEI with "Digma_SoFia_IMEI_recovery".

But still WiFi doesn't work. I see that I have MAC address "Unavailable".

Any help?
[Miscellaneous Android Development] 3ig:
I've just got one of those cheapo Vi7 tablets. It's on the latest firmware v1.13 build on 10.09.2015 and it doesn't wakeup from deepsleep. Has someone found a solution for this?
[Miscellaneous Android Development] r_e_n_e:
I left dummy IMEI. I used this one ROM from https://yadi.sk/d/BFxcO0briMMyi

Flashed and WiFi works!!! So everything was wrong ROM!!!
[Miscellaneous Android Development] goxon:
Do you have problems with battery? My last for one day and i use tablet for 30minutes. My software version is from July 2015. Can i flash something new?
[Miscellaneous Android Development] mircea1380:
What can you expect from a 2,500mAh battery which powers a smartphone with a 7" display?!
[Miscellaneous Android Development] Skygod12000:
I'm getting frustrated with this device now, as nothing I seem to do enables it to boot with screen output. I've been through the procedure in post #1 several times and whilst it doesn't generate any errors, it refuses to boot.

I'm able to communicate with the device through ADB with no issues.

adb devices -l
0123456789012345 device product:Sf3gr_mrd6_p2 model:CW_Vi7 device:Sf3gr_mrd6_p2

I've downloaded that file. Do I just need to adb push the extracted files to /storage/sdcard1 and then adb shell the script?
[Miscellaneous Android Development] goxon:
I instaled deep sleep monitor. Tablet never go to deep sleep. How to flash new software?
[Miscellaneous Android Development] Skygod12000:
Went right back to basics and reflashed with the original and applied the official update.zip using adb sideload from the recovery mode and then followed the procedures in the OP.

Root verifier says that SuperSU isn't installed, but everytime I type the letter 'S' in Google Apps search, it stops working, so will look at alternatives checkers tomorrow.

After 2 days of frustration, it's good to have a device that seems operational again, however there's the upgrade to be flashed and then a reinstall of all the apps I want and ensuring it doesn't 'go to sleep'.
[Miscellaneous Android Development] avant01:
I installed Wake Lock and have chosen WiFi_Full_Mode, so it does not switch into deep sleep

Besides that, I ran out of filesystem space. A short analysis has shown, that due to all the deep sleep crashes /data/log was full of log files and core dumps. I erased all the files & folders -> all is fine again...
[Miscellaneous Android Development] Djreedoo01:
hi,

coulfd you please tell me how to dl this soft and how yo use it?

thx very much
[Miscellaneous Android Development] donbarlone:
Follow this link to download the tool https://www.dropbox.com/s/x1fyaj27mrah0me/Digma_SoFia_IMEI_recovery.rar?dl=0 , you will find a PDF with instruction and pictures. At page 8 it shows where to write down the IMEI , I use it from a broken phone to write it down.
[Miscellaneous Android Development] djreedoo:
Thank you . I already did it and I could retrieve working service.

But, I was unable to find my previous imei ! Nothing's on the box!

I generated new ones and put them to the phones. Illegal but no other choices :(
[Miscellaneous Android Development] yuweng:
Finally figured out how to build TWRP for my X3-C3130, Thanks to RD _that, vampirefo, Invisibot & jemmini who first built it for X3-C3230 & of course Teamwin... :good:

WARNING : Might brick your Vi7, only for those who have experience on using FlashTool_E2 to unbrick... :cool: Pls feedback, might still need some further tweaks... :cowboy:
[Miscellaneous Android Development] RussianBeny:
TWRP got no errors, but if you enter it, then loaded the native recavery.

I'm not a bootloader unlock.
[Miscellaneous Android Development] yuweng:
Hmm, then i think you need to rename /system/bin/install-recovery.sh to install-recovery.sh.disable for TWRP to work then... :cowboy:
[Miscellaneous Android Development] RussianBeny:
Renamed, not loaded. Photo attached.
[Miscellaneous Android Development] yuweng:
i think all Intel X3-C3130/ C3230 first batch are all having this same problem, only the 2nd batch will work.... :rolleyes: i guess you'll have to live with my mod then, copy the whole 3e folder to either the Internal or External sdcard then as usual flash the recovery.fls then TWRP should be able to boot up.... :cool:
[Miscellaneous Android Development] RussianBeny:
If I understood correctly.... I copied the 3e folder in the root memory, then flashed a recovery, did not help, then flashed TWRP, also have green stripes.
[Miscellaneous Android Development] yuweng:
Copy 3e folder to either external or internal sdcard... You don't need TWRP.fls anymore for it to work...

How this mod works is that it is still stock 3e that boots up then extract TWRP ramdisk & manually start it up.... This is bcos intel is limiting the size of recovery.img, anything bigger like TWRP won't boot, found out by Invisibot... :good:

[YOUTUBE]n8KVw7--m8I[/YOUTUBE]

TWRP on stock 3e in action on my X3-C3130

Theoretically should work on unlock bootloader but then again, after unlock, it won't boot unless you press the Volume Up, ref here & here...
[Miscellaneous Android Development] ramiwi:
Thanks,

My tablet came installed with 20150814 build, Wifi wasnt working on every boot and the tablet was freezing on deep sleep (at least after rooting and installing several apps). With this 1.13 build it works fine (rooted too).
[Miscellaneous Android Development] RussianBeny:
Tried. The same green stripes... May need to modify our file recovery?
[Miscellaneous Android Development] yuweng:
Earlier modded recovery is dated eng.softteam.20150814.150041 & yours is eng.softteam.20150910.144423

If still it doesn't boot then i've run out of ideas, share it at your local forum, get those experienced to find out what is causing it not to boot then... :cowboy:
[Miscellaneous Android Development] RussianBeny:
All the same green stripes:crying::crying::crying:
[Miscellaneous Android Development] andrey4korop:
When I wanted to make a backup of the program through the MTK Droid Tools, then I kind of such error

"WARNING: Detected file /system/recovery-from-boot.p, which changes the recovery on the factory to be turned off in normal mode!"

maybe this is the cause of failure ???
[Miscellaneous Android Development] yuweng:
That is not the problem, that file is the stock 3e recovery patch file, beny already report it here... X3-C3230 variance => Prestigio PMT3787 3G & Teclast X70R has already got TWRP, it should work on Vi7...

As mentioned, get someone experienced who owns Vi7, try various other techniques like unlocking the bootloader or fastboot, after all, Intel X3 devices are unbrickable... :cool:

adb reboot fastboot
fastboot boot recovery twrp.img [COLOR="Blue"]<= boot without install[/COLOR]
[COLOR="blue"]OR[/COLOR]
fastboot boot boot twrp.img
[COLOR="blue"]OR[/COLOR]
fastboot flash recovery twrp.img [COLOR="Blue"]<= Installing it[/COLOR]
[Miscellaneous Android Development] RussianBeny:
All tried, does not work(
[Miscellaneous Android Development] Federchicco:
Update firmware in chuwi vi7 - Help

Hay. This is my first post in xda and i don't speak english.

I have chuwi vi7 and windows 7 but i can't flash the tablet.

When I connect chuwi with PC appear 3 new cdc serial and 1 adb.

After installed many driver apper this

I take FlashTool_E2 from this

and the firmware from this

When I start FlashTool_E2 the corner left-bottom is pink!?!?!

If I start the "usb map wizard" don't finds any connection.

If I do "start" and clik on "USB1" it give me

and if clik on "USB4" it give me

Could someone help me?

Sorry for my english.
[Miscellaneous Android Development] Adijazz1706:
Set generic usb driver and press next.

disconnect tablet from pc.

press start usb1 and quickly connect tablet to pc and hold vol-.
[Miscellaneous Android Development] Federchicco:
Thank you for reply.

I tried in this 2 ways:

1) with the phablet on.

2) whit the pahblet of. When i connect phablet with pc e press vol- the screen becomes green.

In both case te answer is

"USB Boot Timeout".

what could I do?

Thank
[Miscellaneous Android Development] Adijazz1706:
Tablet off, then press start usb1 before connecting phablet. after pressing, quickly connect tablet and hold vol-. If not work, try vol+ or power button. Keep trying.
[Miscellaneous Android Development] Federchicco:
Vary vary good. All Ok. It was vol+. Transmission ok. Upgrade ok. Imei ok.

Tanks a lot.
[Miscellaneous Android Development] Adijazz1706:
I rooted it alright, but the tablet is underclocked at only 900 Mhz max while it should be 1.2 Ghz. It chowns the files in the sys/devices/system/cpu/cpu0/cpufreq folder ( saw the line in init.rc which is reset at boot). Could you upload your boot.fls or boot.img file? I'm assuming your tablet runs at the expected 1.2 Ghz. Thanks in advance bro/sis.
[Miscellaneous Android Development] subho.dutta@hotmail.com:
SD card issue in Chuwi VI7

Thanks for the information shared on rooting and my device is successfully rooted now.

But after rooting i noticed some specific issue of SD card not showing anything nor its giving me option of moving Apps to CD card , Even it couldn't detect the size of SD card. Image attached.

There isn't any problem with the SD card as i have checked with multiple SD card and in every case it remains the same.

When i am trying to copy something through efs exlorer i am able to copy the same in SD card and its also showing the content through file explorer.Please help.

Ref. attached image.
[Miscellaneous Android Development] Stripe'Z:
Hi, i have a similar issue :/ I see the card, but not access, and cant copy to this card.

My tablet was now rooted and i have an official recovery.

Can somebody help?

Thanks in advance!

UPDATE: I used the another method from russiam forum, thats failed (cant access to SD card after root). I've done the fall back with the softwares and after i performed the method from the #1st post, its good now!

Thank you!!!
[Miscellaneous Android Development] tvladan:
[MENTION=2109464]casacristo[/MENTION], thanks for posting the rooting procedure, I used the one posted on the first page and worked just fine ... untill I updated superSU and now all I get is an error (from su) saying it can not update the binaries, i have the cw-vi7 model on a build that might appear to be released on 14.08.2015, also busybox does not install saying it can not acces a rootshell. I am using SuperSU Pro 2.65 - chainfire. Other than that root verifier says that I am rooted ...

LE: nevermind, kinda figured that out by re-rooting and NOT updating the SU app from the market, also bot busy box installed.

but now i have the same problem reported by

so, do your tablets work at 1.2 as they are advertised or at 0.9 ?
[Miscellaneous Android Development] bnsuki:
Has anyone figured out how to enable the "Move to SD card" for apps? the few hundred mb of space that is available only makes this tablet almost useless. I flashed the rom provided here and rooted, but no matter what apps or programs I use, I can't seem to move apps to sd... Could someone please provide me some guidance on this issue?

Nvm. Figured it out. I installed the latest updated as posted on page 4 of this thread. It seemed to give me the option now. For some reason ROM included in the original post does not allow moving apps to SD and has a deep freeze problem as discussed in this thread. Will post more after further testing.
[Miscellaneous Android Development] friskeuclyptus:
new rom 20151020

Hi, I found the official 20151020 rom for Chuwi Vi7.

Search for "4pda chuwi vi7 20151020" in Google and you'll find it too (just press the "+" under FAQ section).

I flashed it the usual way and it's working flawlessly, root is OK too!

Does anyone know how to swap internal and external SD? I tried "adb shell pm set-install-location 2" but it didn't do the trick and I'd like to get ride of link2SD...
[Miscellaneous Android Development] lukasubo:
Does anyone's GPS work?

Does anyone's GPS work? I'm in Canada and the tablet sees no satellites, even if left searching for 15-30 minutes. The compass doesn't work, either.
[Miscellaneous Android Development] RussianBeny:
I am in Russia. Does not work...
[Miscellaneous Android Development] droidinterest:
hello,

try custom order in flashtool_e2,

the psi_flash.fls first(one line) then slb.fls (second line)

for flashing.

or you can use this tool simple http://evercoss.com/img/software/Tool_Upgrade_(Booting_Volume_Bawah).rar

good luck !
[Miscellaneous Android Development] tvladan:
thank you for your answer, after looking closely at the pics from the flashing tutorial I observed that the files must be in the order also pointed by you above, so after doing just that I managed to bring it back to life :D. Still had no time to install it in the car though ... so for now is just collecting dust on my desk ...
[Miscellaneous Android Development] advertiva:
My GPS doesn't work either, not sure whether its because I root it or just simply hardware problem, SD Card problem reported by another member here also not working properly, will try to unroot and root again using method describe here
[Miscellaneous Android Development] ProtoDeVNan0:
After unlocking OEM fastboot my tablet was stuck on those green lines(bootloader menu) and even reflashing it didn't help! So. Here's a guide.

Reboot into Fastboot mode by holding vol down and power, until You see green screen.

Open CMD and type fastboot oem lock

Now press vol up and then confirm with power button.

Done! Now just type fastboot reboot and enjoy!

I'm trying to get twrp to work too.
[Miscellaneous Android Development] fauxkalel:
Chuwi [Vi7] latest [ROM] Firmware [5.1.1] [CW-Vi7-20151020-1052][v1.1.4]

It is hard to download latest version of ROM (Firmware) for this device, some links are dead, other with password posted nowhere... So i uploaded one.

I think we should make some post/thread with flash files, tools to flash, repair IMEI, root, unlock when done...

For now some summary of all that what is verified and working.

Here you can download Firmware Android 5.1.1 CW-Vi7-20151020-1052 v1.1.4 ("fls_SFP04_Ilife_F701_Chuwi_CW_Vi7_V1.1.4").

I can not put links, so uploaded link in zip file.
[Miscellaneous Android Development] mangu8s:
hi, after root my external sd card is no reachable, and wifi stopped working. If I want to fix this, I need to flash firmware to stock but then I lose root again. Any way to fix this?
[Miscellaneous Android Development] ursar:
If i want to play around and strip down/customize Android for Chuwi Vi7, from where should i branch off from AOSP or another public custom Android ?

The basic idea is that i want to be able to perform a make from the AOSP and then deploy it on the tablet.

Until now I've only deployed native binaries and .so modules and apk's.
[Miscellaneous Android Development] ursar:
well, any advices ?

It won't boot anymore.

i've attached the only working screen, i think is recovery ?!
[Miscellaneous Android Development] tvladan:
that is 3e stock recovery.

will not boot because: no os, wrong os, wrong libs in /system/libs folder ... any other number of things ... you should of enabled usb debugging and try to logcat via pc/adb, or port / install a custom recovery that has build in usb debugging and try to logcat while starting up the android. before flashing a new / custom rom to any android device, one must learn how to use adb / logcat ... there is no way to quess what is wrong without a proper debugging method.
[Miscellaneous Android Development] donbarlone:
Hello, after I wrote new firmwares ,Crane and v1.1.4 I get some errors when android is loading (after Chuwi logo, when Intel logo appears). I tried to clean cache from recovery but i got the same problems . Do you know how to resolve these issuses ? I put some photos with the screen of my tablet
[Miscellaneous Android Development] tvladan:
have you re-locked the bootloader? it seems that the bootloader being unlocked may cause some problems ...
[Miscellaneous Android Development] donbarlone:
thanks, I relock the bootloader. Now I will see that it will make me trouble
[Miscellaneous Android Development] imanuely:
where is the files?

can ou be more specific for beginers? and where can i find the files???

1. the "intel usb driver for android devices" (and how can i forced it)

2. CRANE_EVB firmware .

thanks
[Miscellaneous Android Development] donbarlone:
Unfortunately my tablet give me those errors even I relocked the bootloader
[Miscellaneous Android Development] ozfunghi:
I'm going to quote myself here, after having successfully upgraded the firmware. I posted this in a reply to this youtube video: https://www.youtube.com/watch?v=-gCMNMAdV9w
[Miscellaneous Android Development] imanuely:
Thanks For the clear post. some questions...

1. Where am I selecting - Generic USB ?

2. After The Drivers installation - How can I Apply it To the device? (I already Aplly Tha "Android Device To the other Driver, and the other 3 CBC not apply any driver)

3. Can it be the Up Volume instead of Down Vol? Becous on the Down Vol It became a green screen and Not connecting. It's Beeping like it's connect - and The beepping doesn't stop - but it's doesn't realy connect. on the Up Vol it's open the 3e Recovery...

Thanks
[Miscellaneous Android Development] ozfunghi:
It's been 4 months since i did this, so i can't remember everything. I just responded this 4 months ago to the youtube video i followed, which was not very clear, because it was in Russian (which i do not understand). I replied to help other people that watched the video and don't understand Russian. So, everything i wrote is in addition to that video. Watch the video and read my instructions along with it.

1/ You can select "generic usb" in the flash tool i think at the bottom. The guy in the video selected "USB IMCE" which did not work for me, but the XDA solution did.

2/ The drivers are not for the device iirc, the drivers are for your (windows) computer, so your computer can interact with the OS on the tablet.

3/ I remember having a lot of difficulty trying to get this right, until i found this solution on XDA, and i'm sure i would have mentioned it if the info was wrong. The way you connect the tablet is VERY specific. If you wait a second too long it will not work, if you don't push the button combination soon enough, it won't work...

This upgrade makes the tablet "not useless" anymore. It doesn't get stuck in deep sleep (more like deep freeze) anymore, and battery life seems to be improved when idle. I've seen video's of people getting 26000 on antutu though, and i only get 19000 (i never tested it with the original firmware).

There are other problems though. I can't use skype because it sends a crazy amount of noise making conversation impossible. I'm also sure using it as a phone would be impossible since it seems to have a realy bad microphone (i tested it with the onboard sound recorder).
[Miscellaneous Android Development] imanuely:
Partly succes

Hi!

It seems like I succesed to do it.

It Exactly as you say - but instead of Vol- It was Vol+

Now I can move Apps to SD card.

But even so, I moved Apps, and Delete Part of them - steel Cannot install Apps. It steel show the storage message. and fake the storage data...

How can I solve it?
[Miscellaneous Android Development] wallywallywally:
I had trouble with SD card also, seemed to be in read only mode. I tried two different SD cards and both had the same symptoms: whenever I tried to write to it I'd get access denied (something like that). I solved it by Options->Storage->SD Card->Unmount->Mount.

After that it worked.
[Miscellaneous Android Development] imanuely:
It's not about the SD card - It's the interal storage...

It's not about the SD card - It's the interal storage...

I cant install nothing, have nothing to cancel.

I cancelled everythings - but The status doesn't change...
[Miscellaneous Android Development] ozfunghi:
It doesn't want to install due to lack of space, or because there is a problem installing?

Because i also have very few apps i can install (even when moving apps to SD, these apps still leave huge chunks of data on the internal memory after being moved.

You can always try something like Clean Master to see how much space it can save.