yashsingh1/xdaforums huggingface dataset:
[Android Q&A, Help & Troubleshooting] uhuru-meditation:
It is in the logs somewhere and also in some Android Certs it claims Bullitt as a maker of 1.019 and most likely 1.022

I think Compal just supplied first ROM for an initial release, while those other guys continued with the Cat branding and supplied links to Catphones and such in later firmwares. However it is rather stupid and inconvenient to have phone bricked by an update whether you had root or not..shouldn't happen.
[Android Q&A, Help & Troubleshooting] walckenaerius:
After many tries to revive my B15Q I think I completely bricked it. Any help would be very much appreciated.

I tried to flash all files with SP Flash Tool of the original version 1.1010.000 that bigal1337 provided, including the PRELOADER. After this, Windows no longer sees the device as MediaTek PreLoader USB VCOM Port but as MTK USB Port. The phone does not turn on at all with battery (not even recovery).

Is there any way to fix this or I have to throw away my new phone? :crying:
[Android Q&A, Help & Troubleshooting] harddisk_wp:
Honestly if you dont manage it to reflash the bootloader, hand it in for warranty and if the seller makes a fuss, point them to this thread.
[Android Q&A, Help & Troubleshooting] harddisk_wp:
Might be worth a shot: http://laurentiumihet.ro/sp-flash-t...installation-guide-including-bricked-devices/ describes how to fix up a corrupted/formated PRELOADER.
[Android Q&A, Help & Troubleshooting] uhuru-meditation:
That is a great link - thanks a lot. I will try and post the result(s).

Do we use raw partitions of 1.010 FW?
[Android Q&A, Help & Troubleshooting] walckenaerius:
Thank you harddisk_wp! I had found many similar guides but this is very complete and detailed.

Now in this state I can flash all partitions on the phone, except the PRELOADER. I think it's a problem of SP Flash Tool. When I read the scatter file SPFT shows 0 for the beginning and the end of the PRELOADER address. If nevertheless I select the preloader file it asks me if it's the correct one (because it's probably expecting a 0 byte file). How can I fix that? I tried editing the scatter file but couldn't manage to show anything for the preloader end address but 0.

Thanks everybody for all the help up to now!
[Android Q&A, Help & Troubleshooting] walckenaerius:
Preloader Flash Error

This is the error I get when I try to flash it. Notice the preloader start and end address as loaded from the scatterfile.
[Android Q&A, Help & Troubleshooting] bigal1337:
Sorry guys, i ****ed up. :( :crying:

The PRELOADER file is wrong!

I forgot to trim the preloader ( http://xdaforums.com/showthread.php?t=2540400 )

I´ll try to build a new (working) one ...
[Android Q&A, Help & Troubleshooting] walckenaerius:
On the other hand this is good news. It means that I'm not out of options!

Waiting for it to unbrick my phone!!!!
[Android Q&A, Help & Troubleshooting] bigal1337:
try this (edit: I dont have google drive anymore)
[Android Q&A, Help & Troubleshooting] walckenaerius:
Yes!!!

Can't believe it! My phone is unbricked! Thanks everyone, and especially harddisk_wp and bigal1337!!!
[Android Q&A, Help & Troubleshooting] uhuru-meditation:
Great. Congratulations.

Does it show an update via OTA and can you get it working again after an update?
[Android Q&A, Help & Troubleshooting] harddisk_wp:
Dude, just flash my 1.022 firmware and **** the OTA upgrades entirely. I'll upload full images as soon as they arrive via OTA and I have tested them at least for basic stability. By the way, instead of using the BOOTIMG delivered within my full image archives, use the usbfix'd BOOTIMG so you can use the normal Samsung drivers for adb on x64 systems which refuse the unsigned mediatek ones.

Edit: Oh, and I'd check if the IMEI values reported in Android's Settings->About device match those on the label in the battery compartment. As you said you flashed ALL partitions, I'd guess that your hw addresses got messed up.
[Android Q&A, Help & Troubleshooting] uhuru-meditation:
Could you please list files that you flushed on your B15Q and from which archive? I tried all the methods but all I can do is reboot into CWM that wd_harddisk made and which works. So I have just backlit black screen and no boot at all on normal power on.

I flushed correct PRELOADER, but i think I have some other files corrupt.

Please explain the method.

Thanks.
[Android Q&A, Help & Troubleshooting] walckenaerius:
Yes, I wanted to do that, but after 3 days trying to repair my phone, I needed some time off... Ok, my problem was that my phone's memory was entirely erased. I did that, during my trials to reflash it with SP Flash Tool. The format action did not seem to be working, but when I did a readback of various parts of the memory, it was all zeros.

So , the solution was to flash the 1.1010.000 ROM, uploaded by bigal1337, entirely, even the hidden partitions (with the correct preloader of course). To do this you flash all the partitions that the scatterfile allows you to. Of course, set USRDATA to your backup of the data partition. Then use SP Flash Tool again with the attached modified scatterfile. It will show you only the rest, hidden partitions. Flash them. (Note: If you make the last partition BMTPOOL downloadable in the scatter file, SP Flash Tool crashes, so I did not flash it, but the phone works just fine).

Now your phone is ready to go, but with the 1.1010.000 ROM version. If you want, you can now flash the 1.022.000 ROM files uploaded by harddisk_wp, using the normal scatterfile.

Notice that the IEMIs of the phone did not change by flashing all of the partitions. They are stored somewhere else, so this proces is safe for that.

That's it! Good luck!
[Android Q&A, Help & Troubleshooting] uhuru-meditation:
Yes. Thanks. That worked. B15Q is back from the land of "bricked".

This is what I did;

I flushed first of all the "hidden" files from your scatter file.

Found no problems in flushing all the "hidden" files.

Tried to boot phone and phone got caught in a boot screen with CAT logo and kept resetting.

I booted into the recovery and wiped all the data and cache.

Then I used original scatter to load every 1.010 file one by one and as last to flush were four 1.022 files.

I booted the phone and it was "Android upgrading..." prompt and after some time it booted on fresh.

I did again full reset to factory settings for just in case and that was that.

It all is working well, or so it appears. IMEI and Serial numbers are there, both SIM cards show up, it all looks ok.

Well, mucho thanks to everyone and I am rather sure that we all now wait for a solid Cynanogenmod for B15Q to show up.
[Android Q&A, Help & Troubleshooting] Pepoluz89:
Unbricked Phone

Following this posts, my catb15q is now working.!!!! Thanks to all...!!!!!!

I guess that my CAT was dead, but i reborn it. Great Work to all....

My phone was dead trying to make apps go to SD and not stay in memory, if someone know how to make apps install in SD Card and not reside in memory, WELCOME for tips.
[Android Q&A, Help & Troubleshooting] walckenaerius:
This is the best solution, but a bit technical to setup http://xdaforums.com/showpost.php?p=57868426&postcount=4

Or try link2sd after rooting the phone (works on 1.022) http://xdaforums.com/showpost.php?p=57986854&postcount=119
[Android Q&A, Help & Troubleshooting] Pepoluz89:
Link2SD - Not working

Allready have instaled Link2SD in my rooted B15Q but when trying to move app's to SD Card, the program say something like "App2SD is not supported on your device due your device have external primary storage emulated from internal storage ... etc...etc"...:silly:
[Android Q&A, Help & Troubleshooting] walckenaerius:
"PMT changed for the ROM; it must be downloaded"

For those getting the message "PMT changed for the ROM; it must be downloaded" when using flash tool. It means that your drivers are not working correctly. Reboot windows in recovery mode (if >=8) or press F8, depending on your windows version, during startup. In startup options select "Disable digital signature verification". Then start windows, go to device manager, select view -> show hidden devices and expand the "Other devices" node. For every entry that includes MTK or VCOM or Android, right click and select uninstall, then check also "Delete driver files", if this checkbox is available. Then extract the attached file (split in 2 due to forum limitations) and install all the inf files by right clicking on them and selecting install. On the warning that the driver is not digitally signed select ignore and continue.

Also, use the latest SP Flash tool

https :// docs.google.com / uc?export=download&id=0B-x3yWTLhqFiRVhRWTN3OXhKWVE

https :// docs.google.com / uc?export=download&id=0B-x3yWTLhqFiX05tVmlqdzdpSnM

I managed to use these drivers and SP Flash Tool 5.1436 under Windows 8.1 64bit. By the way, when using SP Flash Tool turn off your phone, remove the battery, reinstall the battery and connect the usb cable, after you have clicked download on SP Flash tool. Do not turn on the phone! Contrary to other directions I was not able to use SP Flash Tool with the battery removed from the phone.
[Android Q&A, Help & Troubleshooting] uhuru-meditation:
A modest tips from my experience with W7 x64.

Since I do not really use or have Windows at home I had issues with installing drivers in W7 x64 on a test box at work.

The way I managed to install the proper driver was to start run -> cmd.exe as an Administrator - kind of a "root shell"

and from within there I managed to start Device Manager and uninstall aggressive default drivers and install proper VCOM (Android) driver circumventing driver signature prompts all together. It all worked OK. B15Q came back to life after 5 minutes.

I have also noticed that SPFT behaves rather stable when downloading file by file then a bulk download. Reconnecting the USB cable on the computer side and not on the phone's MicroUSB side was a good tip too.

What I have noticed is that when connected to Linux using "lsusb -v" (as a root) the B15Q lost its ID's it had before and it shows as "MT65xx Android phone", but I find it as a minor issue.
[Android Q&A, Help & Troubleshooting] m25orbital:
Re: "PMT changed for the ROM ..."

I have the "PMT changed for the ROM; it must be downloaded" problem, but I'm using Windows XP Pro, so I don't have an issue with installing unsigned drivers. I can install them by clicking "Continue Anyway" when the driver warning appears.

It's a more or less fresh XP install that's from my laptop's original XP OEM recovery disc, so it's more or less what's needed to make the laptop work from the start. (Most of the time it's booted with Linux and Windows XP runs in a VM, but I have a bare metal environment for this since VirtualBox doesn't support USB TTY ACM emulation that's needed for Android recovery to work.)

Anyway, when I look at the SP Flash Tool logs, it appears there's an issue with data length with BMTPOOL: one side is reporting 0x1500000, while the other side is reporting zero.

I'm using the version of SP Flash Tool that walckenaerius linked, and I've tried his drivers as well as some other drivers labelled "MT6577 USB VCOM drivers", "MT65xx Drivers", and even "MTKUSBAll_0.9.2". Nothing's getting me past this PMT validation error. Suggested reboots have been of no use whatsoever.

What's interesting is that the file structure from the scatter file is probably right except for the BMTPOOL, but attempts to tweak it haven't made SP Flash Tool happier. Removing SYS23 (and even SYS22 and SYS21) simply moves the error to another partition with a bigger length value that's wrong, so it appears that SP Flash Tool is calculating this 0x1500000 difference in BMTPOOL. (Changing the length to 0x2a00000 did not help matters.)

At this point, I have a rather pricey brick that's refusing to cooperate with SP Flash Tool. It does not obey the power button at this point, but obviously it is still alive since it's unkind enough to do something that causes the PMT size change errors.

I am willing to bet that if I could simply brute force my way around the PMT check (so as to confuse SP Flash Tool into believing everything is OK), I could flash everything back onto the CAT B15Q. As things stand, I can't even get the preloader to do its thing, possibly because I've nuked it with an accidental "Firmware Upgrade" attempt.

The plan is to restore the 1010 version of the ROM with all of the hidden files, of course, so I can get the device back into the land of the living. :)

Useful bits to know: the IMEI prefix (TAC + extra digit) is 354 473 060 and the SN starts with B15Q143.

Can anyone give me some additional clues that might help me get farther along?

Would acquiring a Windows 7 rental laptop for the week just for phone hackage possibly speed this along a bit?
[Android Q&A, Help & Troubleshooting] talacom1981:
i have to same problem

My phone bricked after updating to 1.1019.000

please send me by Email :

talacom1981@gmail.com

I was lucky enough to save the whole ROM to a file before updating.

The problem for me was the original recovery.

My solution was to install the new 1.1019.000 recovery on my original ROM and then updated to the new (1.1019.000) firmware.

Give me your mail and i will send you the 1.1019.000 recovery. I have the whole ROM but it´s to large and i am to lazy to upload :P[/QUOTE]
[Android Q&A, Help & Troubleshooting] nasios:
sorry but...

i have bricked my phone ,,,,i tried all the ways you people said in the posts but i didnt manage to do something ,,,,can someone who has unbrick the phone write the steps and the file so we can also unbrick our phones with simple words .....
[Android Q&A, Help & Troubleshooting] Zephyrel:
help !!!

My B15Q was stuck into a bootloop after a build.prop manipulation, I test "format" in SP Flash Tool, now it's dead :crying: but still detected when plugged into my PC. In my last ROM save; preloader and other items are missing,

Can someone with the same device send me his romsave with all items to flash my catphone ??

Thanks a lot
[Android Q&A, Help & Troubleshooting] jankim:
cat b15q update brick

Please send me recovery file please to janis.kimenieks@koordinata.lv or janis.kimenieks@gmail.com becouse i cant "wake up" my cat too! ;) thanx a lot!
[Android Q&A, Help & Troubleshooting] Libyan Man:
[/QUOTE]

OK then do you know where to get those ROM files ?? and did you flash your phone with preload file?
[Android Q&A, Help & Troubleshooting] Robertinis:
Guys, problem updating firmware (downloaded from OTA) from 1.010.000 to 1.019.000.

The update sequence is that:

Installing update...

Verifying current system...

"system/app/Book.apk" has unexpected contents.

Update.zip is not correct

Installation aborted.

Any ideas? phone is not rooted
[Android Q&A, Help & Troubleshooting] ondrejgagy:
Hi Guys,

Iam looking for stock rom for my Cat B15Q. I will brick him with combination root+OTA.

But my phone is region APAC not EMEA. I use every rom from this site or russian site and doesnt work. Can you help me upload your rom for me.

Thanks.
[Android Q&A, Help & Troubleshooting] ihatelols:
Need

Please please send me one too.. I have bricked b15q also :( silversimsonkolm@hotmail.com

Also, i would NEED an USRDATA file, mine is ****ed :(

I bought another b15q, copied my userdata file i needed and flashed it on, now my cat is unbricked got two working ones. Anyone needs a userdata file, send me an email.
[Android Q&A, Help & Troubleshooting] noopi kim:
Catb15q_gene_ds_1.026.000

Please help,

Anybody can help to share me firmware CATB15Q_GENE_DS_1.026.000 ? My phone was bootloop since updated android about last week and looking for that file :(

thank you.
[Android Q&A, Help & Troubleshooting] free_login:
update-B15Q_GENE_DS.1.026.00-user.zip
[Android Q&A, Help & Troubleshooting] ondrejgagy:
Hi boys,

i repair my dead phone :victory:. I use these steps that help me. d

use vcom driver http://xdaforums.com/android/help/cat-b15q-firmware-update-bricked-device-t2983902/page5 and use last spflash

format phone by spflash - (must load scatter file and use autoformat) these steps skip PMT change error

download these original 1.1010 rom:

http://xdaforums.com/android/help/cat-b15q-firmware-update-bricked-device-t2983902/page2

download correct preloader

http://xdaforums.com/android/help/cat-b15q-firmware-update-bricked-device-t2983902/page4

upload via spflash - all boxes except cache/userdata

if you get a brom error - try it one-two times clicking on download button.

download scatter file hidden partition

http://xdaforums.com/android/help/cat-b15q-firmware-update-bricked-device-t2983902/page4

upload all boxes from 1.1010 rom

if you get a brom error - try it one-two times clicking on download button.

upload these 1.022 rom http://xdaforums.com/android/development/stock-rom-cat-b15q-rom-development-t2988774 do not use preloader!!

if you get a brom error - try it one-two times clicking on download button.

download from http://xdaforums.com/general/rooting-roms/root-achieved-cat-b15q-t2822015/post65075867#post65075867 update-022-032.zip. copy it to the SD card and put it in to the phone.

go to the recovery. run wipe data wipe cache. And apply update from sd card.

after reboot......... .......woala Phone is still alive with last update.

thanks xda forum, and bigal1337; free_login; walckenaerius; harddisk_wp; and another quys.
[Android Q&A, Help & Troubleshooting] amsterbond:
I'm newbie in this things, but I've also problems with another file: CatStore.apk and when I made a backup with SP_Flash_Tool and open the system.img (Android) file I see the CatStore.apk missing ( because I deleted it, if I remember well) I solved the problem with flashing the phone with the same ( Dual Sim v1.026 stock firmware file ) I only flashed the phone using a stock system.img because the missing file CatStore.apk is inside this file, if you make a backup from your phone check the system.img file with 7-zip and open the app folder because the Book.apk file is there, if missing then the problem is this, because the system want that file, but I don't know why... After flashed my phone with the above mentioned fw file my phone work well, and now I can upgrade to 1.032 without any error message... Hope this will help you a bit
[Android Q&A, Help & Troubleshooting] Robertlb:
No succes, downloading preloader or orig.rom 1.1010

Hallo guys,

I'm new to this scene, so please forgive me if I sound like a rookie (because I am):D.

I have a B15Q phone that crashed while updating, it kept rebooting in recovery mode. Tried al the option in recovery mode without success. I then gave the phone to a friend at a phone shop, he was also unsuccessful in restoring the phone. Even worse now, it doesn't even turn on anymore :(.

I got a lot of useful information from this site :good:, but still wasn't able to restore the phone. The phone is still recognized by my PC, I can download files to the phone so I assume there is still some hope in restoring the phone.

I probably need the original 1.1010 rom and preloader, but up until now wasn't able to download neither of them :eek:. The posted links give me a google search page. Can some one please mail me the rom and preloader or give me intructions how to download them.

thanks,

robertlb@gmail.com
[Android Q&A, Help & Troubleshooting] ondrejgagy:
hi robertlb

use my instruction to repair your phone. i spent a lot of time, tu use any combination to repair from all web pages:. i have root and update firmware via OTA brick my phone. . these steps repair my phone.

good luck and if you have any questions. write to me.

sorry for my wrong english.
[Android Q&A, Help & Troubleshooting] Robertlb:
Successful unbrick

Thank you very much guys:D, especially ondrejgagy, harddisk_wp and bigal1337, after i was able to download the original rom i was able to unbrick my phone using ondrejgagy`s instructions:good:. Very happy.

Also found this very usefull link with instructions and all the needed files in a single zip file. The site is Czech but i used google translate :D

Since i can‘t post links yet, just search for "miradata.cz/blog/index.php?entry=Windows-Mobile-6.5-ENG-pro-ETEN-Glofiish-X800--/edit-ROM-v2"

Thanks again guys.
[Android Q&A, Help & Troubleshooting] FireGrace:
Windows 10 is not a disaster....

Hello dear CATB15Q User!

I wish u best of luck in repairin youre phone with this forum =)

Take this (this is all in da one package...) ht tps:// www . dropbox .com /s/hvp6qy9izhpwwg4/CatB15Q-24.03.2016.7z?dl=0 (Forum dont wanna me post links, sorry)

Windows10 tested=)

and do what ondrejgagy says and you will be fine. READ FIRST!

All credit goes to all awesome ppl who made this happen =)

U can read them on this forum, and please thank them for their work.
[Android Q&A, Help & Troubleshooting] agusrozak:
Please somebody help? i need firmware 1.23.000
[Android Q&A, Help & Troubleshooting] agusrozak:
Please please send me one too.. I have bricked b15q also , agusrozak@hotmail.co.id
[Android Q&A, Help & Troubleshooting] dlfollmann:
Thanks to all of you who helped constructing the solution here. My buddy's phone is alive again, thanks to your effort.
[Android Q&A, Help & Troubleshooting] Razor6s:
need 026 files

Hello, I am new to the forum, and amateur also... please excuse me for my bad eanglish.

I did an ota update to 032 from 026 and my phone got stucked in recovery mode, it wount boot, just get to revcovery mode, I already tried reseting the factory settings, also trying the excelent tutorial by ondrejgagy with no luck 'cos I couldnt get to the first step, I tried in 3 diferent windows enviroments 7 / 10 with no luck, because I cant get the drivers to work.

Also I think if i can get to recovery mode I hast to be an easier way thru updating with SD,

can anyone upload again, all links are dead...

update-026-032.zip

update-B15Q_GENE_DS.1.026.00-user.zip

or any suggestions on updating thru sd?
[Android Q&A, Help & Troubleshooting] baggiesberea:
I need roms for cat s50 can anyone help me
[Android Q&A, Help & Troubleshooting] hassan35278007:
plz help fire care

Error (429)

This account's links are generating too much traffic and have been temporarily disabled

tx in advance
[Android Q&A, Help & Troubleshooting] freizinger:
How i upload these 1.022 rom, if in the spflash do not have options to select the files uboot.img, recovery.img, boot.img and system.img. I can't pass for this part of tutorial. Or i have to use other scatter file to do this part of tutorial. I bricked my B15Q. Thanks.

Obrigado.

leandro.freizinger@gmail.com
[Android Q&A, Help & Troubleshooting] arjunalov:
b15q

can u send me too.?? Please
[Android Q&A, Help & Troubleshooting] cJames2:
guys, i'm trying to fix a B15Q from a client. it's stuck on a bootloop. I've read about 5 different tutorials around the web, this one is by far the most complete and accurate, but I'm still stuck.

I've tried to flash only bootimg, recovery and android; tried flashing everything; tried formatting and flashing everything; only formatting; but the process doesn't go on.

if I try to flash, I get the error "BROM ERROR : S_FT_DOWNLOAD_FAIL (4008)", which, in my newbieness, means something like the scatterfile info doesn't match the files I'm trying to flash. but I can't seem to find any other scatterfiles around the web, they're just the same.

but if I try to format, I get the error "BROM ERROR: S_FT_FORMAT_FAIL (0xFAA)", which I just couldn't find out its meaning.

please, help me!

EDIT: recovery doesn't boot. only fastboot, and the phone tries to reboot normally after about 20 seconds (and gets stuck into the bootloop again).
[Android Q&A, Help & Troubleshooting] freizinger:
I can unbrick using this files

I use this tutorial and this files and work in my CAT B15Q, after do it i can unbrick my cell:

h tt p s :/ /ww w. miradata.cz/ blog/index.php? entry=entry160301-120859

h t tp:/ / ww w.filefactor y.c om/ file/3azamby1ku1t/update _1.010_via_ recovery.zip (use this after in update to sd card)
[Android Q&A, Help & Troubleshooting] freizinger:
You have to plug usb and after that quickly click in button download. And repeat that in which part of tutorial.

And you have to plug the phone without battery.
[Android Q&A, Help & Troubleshooting] messi2050:
try to flash stock rom