yashsingh1/xdaforums huggingface dataset:
[Upgrading, Modifying and Unlocking] Scetian:
Sim not working on Huawei Ascend Y300

Hello, this is my first post on xda so im pretty confused on where to ask and how to ask and stuff like that.

I have Huawei Ascend Y300 rooted, and running fuxionX rom. Now the problem is that a couple of days back i found Firefox OS for y300 here:

link: www.htcmania.com/showthread.php?t=653276

I flashed it (before flashing my mobile was working perfectly fine there was no issue at all) but the sim was not working on it. So i downloaded cm11 and gapps for y300 from here:

cm11 link: http://www.modaco.com/topic/367021-kk-442-cyanogenmod-110-rom-all-nightly-builds-available/

gapps link: xdaforums.com/showthread.php?t=2397942

i used Mini modular package of gapps. but sim was still not working even on after flashing cm11. so i thought of restoring the nandroid backup i made of FusionX rom before flashing Firefox OS and now that i have restored the nandroid backup my y300 is still not detecting the sim.. Can anybody please help me? Thanks in advance and sorry for asking at the wrong place (i know im asking at the wrong place.) kindly guide me where to ask instead of getting mad at me so that i can learn things faster. Thanks for your help :)
[Upgrading, Modifying and Unlocking] elmkzgirxp:
It seems like the baseband must have not been compatible with the Firerox OS. Why not extract the baseband from an UPDATE.APP (from Y300, of course) with any tool (try googling it, but I prefer Huawei Update Extractor), then flash it using dd command through adb.
[Upgrading, Modifying and Unlocking] Scetian:
Thanks brother for replying back. im sorry im a noob so i dont know much, but what i understood from your reply is that first i should extract the baseband and then flash a new rom on it? im already on android running FusionX rom. I restored the nandroid backup but the sim is not working on it too.. can you be more specific on what to do? sorry for being noob..
[Upgrading, Modifying and Unlocking] elmkzgirxp:
The first thing I want you to do is find your stock ROM (the one that came with your device). You can find a list here (translate it as it is in Deutsch).

The next step will erase everything on your phone, so do a backup.

1. Extract the downloaded zip.

2. Copy/Cut the "dload" folder to the root of your SD card (make sure it is in FAT32 format).

3. Turn your phone off, as in completely (remove and reinsert the battery).

4. Hold the buttons Power, Volume Up, and Volume Down.

5. Then wait for the installation to finish.

If the installation failed, then we're gonna have to use the dd command.
[Upgrading, Modifying and Unlocking] Scetian:
ok i'll do that and tell you how it goes. oh btw i have nandroid backup of stock rom that came with my mobile.. Can it be helpful? Thanks
[Upgrading, Modifying and Unlocking] elmkzgirxp:
What does your backup contain (such as system, userdata, etc.)?
[Upgrading, Modifying and Unlocking] Scetian:
i have attached a picture which shows the files that are present in the backup folder. Kindly see if they are of any use. And one more thing i wanted to ask is that i have forgotten what was the version of stock rom that came with my mobile i.e. B197 or B199.. what should i do? download any one of them?
[Upgrading, Modifying and Unlocking] elmkzgirxp:
The backup won't do any good.

And about the firmware, where'd you buy the phone anyway?
[Upgrading, Modifying and Unlocking] Scetian:
I got it as a gift.. i think it was bought in Switzerland. The firmware was B197 or B199 i guess not sure about it.. :(
[Upgrading, Modifying and Unlocking] elmkzgirxp:
Alright. If that's the case, then download this instead.
[Upgrading, Modifying and Unlocking] Scetian:
ok. i'll get back to you after downloading it.
[Upgrading, Modifying and Unlocking] Scetian:
ok brother i have downloaded that firmware you gave me link to. what should i do now? (sorry for late reply i was busy preparing for mid term exams)
[Upgrading, Modifying and Unlocking] elmkzgirxp:
Do the same thing I told you earlier. To extract and such.

Anyway, good luck with your exams bro.
[Upgrading, Modifying and Unlocking] Scetian:
Thanks :) exams are going good so far. And i tried extracting the zip that i downloaded but theres some kinda error in it and its not extracting now.. :( btw im using winrar to extract it.. what should i do? download it again? :eek:
[Upgrading, Modifying and Unlocking] elmkzgirxp:
Alright, I have come up a solution for your problem. You don't have to download the .zip anymore. But first, you have to make a backup of your baseband. In order to do that, you have to open up adb and type in the following command:

Inform me if you don't have any idea how to do this.

Then flash the file I attached to this post in CWM or TWRP.

Hope this helps!
[Upgrading, Modifying and Unlocking] Scetian:
thanks bro but i really dont have any idea about that command and how to run it.. :p Need your help with it too :D
[Upgrading, Modifying and Unlocking] elmkzgirxp:
Sure buddy. Since I'm not on my PC yet, I want you to install the drivers for your phone first. Here's a headstart: http://consumer.huawei.com/en/support/downloads/detail/index.htm?id=11802
[Upgrading, Modifying and Unlocking] Scetian:
Installed the drivers.. now?
[Upgrading, Modifying and Unlocking] elmkzgirxp:
Extract the attached archive to your computer. Then hold Shift + Ctrl and right click on the platform-tools folder, where adb.exe is located, then click "Open command window here".

EDIT: In your phone, go to Developer Options in Settings, then tick USB Debugging.

Type in this command to check if your device is detected:

There will be something listed under the "List of devices attached."
[Upgrading, Modifying and Unlocking] Scetian:
Done. Thats what i saw when i entered the command you told me to.. So this means that the device drivers are installed right?
[Upgrading, Modifying and Unlocking] elmkzgirxp:
Yes. You're on the right track. Then refer to post #362.
[Upgrading, Modifying and Unlocking] Scetian:
Ok so i ran the command to backup current baseband but i think nothing happened.. the cursor is blinking but i didnt see any message like 'Finished' or 'Done' or something like that.. is that normal?
[Upgrading, Modifying and Unlocking] elmkzgirxp:
Would you care to send a screenshot?
[Upgrading, Modifying and Unlocking] Scetian:
Sorry. Here it is. Oh btw i made a silly mistake first time and got that error so dont mind that :D
[Upgrading, Modifying and Unlocking] elmkzgirxp:
Can you see a baseband.img in the platform-tools folder? If not, try this instead:

Then send me a screenshot.
[Upgrading, Modifying and Unlocking] Scetian:
Its same as before. The cursor kept blinking, and theres no baseband.img in the platform-tools folder.
[Upgrading, Modifying and Unlocking] elmkzgirxp:
I see the problem now. It seems that you don't have superuser access, am I right?
[Upgrading, Modifying and Unlocking] Scetian:
Yes you are right.. i figured that out too and granted permission but now that i ran the command you suggested, it says -c: not found. What does that mean now?
[Upgrading, Modifying and Unlocking] elmkzgirxp:
Okay, okay. Try the whole command this time.
[Upgrading, Modifying and Unlocking] Scetian:
I ran the whole command but thats what i see now.. and theres no file in the Platform-tools folder named baseband.img :(
[Upgrading, Modifying and Unlocking] elmkzgirxp:
It seems that you don't have administrator rights. Open Command Prompt as an administrator.

Visit this page first and do Section 1, Way #2 before typing in the command. This is for assurance that the baseband is really in /dev/block/mmcblk0p3. You should find "RADIO" in /dev/block/mmcblk0p3. If not, let me know.

Then after that, type in this command:
[Upgrading, Modifying and Unlocking] Scetian:
I saw that thread you referred to me. It says that somewhere in "/dev/block/platform/" there'll be a folder called "by-name". But theres no such folder there.. There are only two folders there called:

- msm_sdcc.1

- msm_sdcc.3

Theres no "by-name" folder in both of them, instead both of these folders contain some files and a "by-num" folder.. What now? :(
[Upgrading, Modifying and Unlocking] elmkzgirxp:
Okaay. I'm no expert when it comes to this. Why not try Way #3?

But if it still doesn't work, then skip this step and proceed to backing up the baseband.
[Upgrading, Modifying and Unlocking] huabstep:
trouble with recovery

Ive recently successfully unlocked boatloader and i think successfully flashed on the TWRP recovery following the instructions. Except when i boot into TWRP i can't select anything with the touchscreen. The volume rocker seems to not work. It doesnt seem to be frozen as i can still press the lock button and itll come up with swipe to unlock, but i cant swipe it as the touch screen doesnt seem to work. Has anyone had this happen to them before? need some help

Thanks
[Upgrading, Modifying and Unlocking] trion:
Maybe you got my unlock code too ;) monday it's a week since i first mailed them, hope i get the right unlock code too :) and hope they open a forum for the Huawei y300 and we get some nice roms :)
[Upgrading, Modifying and Unlocking] smartumer:
I also first got the reply with Incorrect IMEI and other data, but i sent the email again and got replied in a day. :)

My Y-300 is now rooted, having bravia enginde installed and i am just loving it :D
[Upgrading, Modifying and Unlocking] corelx:
Today i also succesfully rooted my Y300 and installed Bravia Engine 2 following this guide

It's really worth it, picture is much more better!
[Upgrading, Modifying and Unlocking] huabstep:
CWM?

I'm just wondering has anyone got a CWM that would work with this phone instead of the TWRP, does this one work with this phone. http://xdaforums.com/showthread.php?t=1506998.
[Upgrading, Modifying and Unlocking] shankar_tall:
stock rom

can some one please provide me huawei ascend y300-0100 b165 stock rom link please
[Upgrading, Modifying and Unlocking] corelx:
i think unfortunately it's not that easy... :(

yesterday i tried to flash the new stock from the huawei website, but it failed at step 2/2

after some research it seemed like because of the unlocked bootloader...

tried to relock when i had error because of the custom recovery so i went searching more

then i found a way to extract the images from UPDATE.APP and flashed the stock recovery

afterall this it's still failing at step 2/2 when i try to flash stock...

anobdy idea?
[Upgrading, Modifying and Unlocking] corelx:
if somebody have the Y300-0100V100R001NLDC150B171 firmware on his phone please make a full backup and share it, because i've desperately run out of ideas how to fix my phone :(
[Upgrading, Modifying and Unlocking] shankar_tall:
stock rom issue

it is simple if u have team win recovery installed u do complete wipe when u do complete wipe it will show you you dont have os installed!!!!

then use the rom that u downloaded from huawei website i think its b175 rom . try to flash rom again

tada it works .
[Upgrading, Modifying and Unlocking] cutedrummerboy:
Corelx, just relock the bootloder, put the letest rom in the sd card, flash it with force flashing method. (power + vol up + vol down)
[Upgrading, Modifying and Unlocking] D E V I L:
i had same problem

i have relock bootloader but until i cant install stock rom:(

i need backup,please some one share backup of phones

soory for my bad engilish
[Upgrading, Modifying and Unlocking] corelx:
Thanks for the tips, i went much more far from these i think :)

Since yesterday late night when i realized that something went wrong i kept trying and searching.

Long story short, read everything about Huawei phones and figured out very soon that the bootloader have to be relocked

for stock flashing. However the relocking will fail until it detects different recovery, so i had to get a stock one.

After an hour found the way to extract a stock UPDATE.APP to get the images from inside and flashed the stock recovery.

Made wipe in stock and went to flash again that one official rom from Huawei's website. Still fail at step 2 without any further information.

Tried to examine the log from the "dload" folder of the sdcard but this also doesnt lead me to any update.

In the morning i went with the TWRP wipe and "no-os" method, desperately waiting for the success but it's just left me without os.

Also there is many ways i've tried, i could keep writing until tomorrow :)

It was basically my fault because yesterday after i've rooted the phone i was thinking about what to do first: Bravia engine or xLoud...

Since i'm in the "bussines" from about the first GB releases my first thing to do after rooting should have been the BACKUP.Isnt it?! Blame-on-me!

Now i gave up because this week i were sick, but i know from next week i will work from 7 am till 8 pm every day, so not going to have the chance to do anything besides eating and sleep in my freetime. Just arrived back from the store where i bought it, but there i just had another shock: repair time is going to be 4-6 weeks usually or in some cases more. I was like "wtf, come-on! you send it back to china?!" and the answer was yes...

Altough thank you very much for the help guys!

When i get it back my first things to do is going to be making full backup and upload it here. Also i advise the same to you, because we don't have TWRP or CWM flashable backups or stock roms out there. As far as i know the new general version have some bugs with the status bar and things.
[Upgrading, Modifying and Unlocking] corelx:
still have one crazy idea what i havent tried...

maybe shankars method can work for you.

only on your own risk!

i would first put back the twrp and wipe out everything, i mean everything from the phone

then reboot into bootloader mode and flash back the original recovery, which can be extracted from

the new firmware build.

relock the bootloader now and try the UPDATE.APP in the dload folder, booted up with both volume buttons pressed.

maybe it could work, but i can render your phone to a brick like mine, because if the update not going to finish you also not going to have other choice than sending back to service (takes around 4-6 weeks!)
[Upgrading, Modifying and Unlocking] D E V I L:
i find backup of huawei y300!

https://www.dropbox.com/sh/p1k3jyfhih9g2pg/Ug920rf4GO

after restore the backup my phone was repaired:)
[Upgrading, Modifying and Unlocking] otti17:
You can't install a stock rom, because your IMEI did'nt allow it. The Y300 are saled under two different versions. The one from telefonica and the other for the open market. Open market phones can install the b176cz and the official b175 from huawei. The telefonica devices can only install the official update from huawei, but you got no triggers in the notificationbar. (But theres a fix for telefonica devices made by me, see attachment)

The solution ist the OEM Info Hack Tool, wich craete a backup of your IMEI, write a custom IMEI, let you flash a rom (b176) and after that it restore your backuped IMEI. Now you are on b176 with telefonica devices. The readme is inside the package.

Btw, other backups and roms could be found here. But remember, it's for Huawei Y300-0100 (U8833-1)
[Upgrading, Modifying and Unlocking] FurryTauren:
Guys, I received a strange email from Huawei and I'm not sure if the unlock key is right so I was wondering what may happen if I try to unlock the bootloader with a wrong key. Will it say it's not right or will it just brick my device?
[Upgrading, Modifying and Unlocking] drmilosh88:
Guys..any details on the update (build) 00B175 for y300 ? Has anything changed , except for boot image ? Like the use of ram, overall speed etc :)?
[Upgrading, Modifying and Unlocking] aka_b_ch:
hi

i have a problem

i send a email to huawei from huawei web page but do not receive answer ?

Help me plz to email huawei for Unlock Code .

thank you.
[Upgrading, Modifying and Unlocking] drmilosh88:
Hello. You should wait a couple of days, maybe even a week, and you will recieve an email.. But it doesn hurt to send another one , just to be sure ;)
[Upgrading, Modifying and Unlocking] Kastelot:
Well hello... I'm not the only one who ****ed up, I see.

I have a backup of the NL version of the Huawei Y300-0100, but I made this after I changed some things which made my sound go broken. When I change the volume, it reboots. Can't access the dialer also.

All because I changed some system files with the 'Pimp My Root' app. It said I could restore everything by installing a rescue.zip, but I can't get this to work for some reason..

I tried reinstalling the rom via update.app (after wiping everything), but it showed me "update failed", so I restored things.

I have my bootloader unlocked. Is this why it showed "update failed"?

What do you guys recommend me to do? I see plenty of people with problems restoring roms. Should I wait for a custom rom to flash, can I restore via update.app, can I restore via the rescue.zip or can I manually change system files to fix my sound etc.?

I can attach the rescue.zip and backup of the rom if useful?

Thanks,

Kastelot
[Upgrading, Modifying and Unlocking] Scetian:
I dont know what the F is wrong with my phone.. it doesnt even have normal directories.. like i ran this command:

"adb push parted /system/bin/parted" in Way#3 of Section 1 and it says no such directory!!

So by backing up the baseband you mean the post # 362 command right?
[Upgrading, Modifying and Unlocking] elmkzgirxp:
Do the one in #378. But before flashing the baseband, tell me first how big the backup is, then I'll tell you if it's safe to flash it.

Don't forget to start it with administration rights.
[Upgrading, Modifying and Unlocking] Scetian:
I ran this command:

adb shell su -c "dd if=/dev/block/mmcblk0p3 of=baseband.img"

and thats the error i get now. Its a new one, means something is happening now.. lol :D What do you think it means now?
[Upgrading, Modifying and Unlocking] elmkzgirxp:
Try the one in #378. Does it still encounter the same problem?
[Upgrading, Modifying and Unlocking] Scetian:
Ran Post # 378 command and got another new error.. heres a screen shot if it..
[Upgrading, Modifying and Unlocking] elmkzgirxp:
No, no. I meant the one in #378. Exactly like it. Without quotation marks, without -c.
[Upgrading, Modifying and Unlocking] Scetian:
oh sorry.. i ran the one in post # 378 this time and got yet another error..
[Upgrading, Modifying and Unlocking] elmkzgirxp:
I've figured out I was wrong this whole time. Try this command, this will surely work:

adb shell
su
dd if=/dev/block/mmcblk0p3 of=/sdcard/baseband.img

Copy baseband.img to your PC for backup.

Then flash the zip from post #362.
[Upgrading, Modifying and Unlocking] Scetian:
Got the same error again.. :(
[Upgrading, Modifying and Unlocking] elmkzgirxp:
Try to substitute "/storage/sdcard1/baseband.img" to "of="
[Upgrading, Modifying and Unlocking] Scetian:
you mean i should use "of=/storage/sdcard1/baseband.img" instead of "of=/sdcard/baseband.img" right?
[Upgrading, Modifying and Unlocking] elmkzgirxp:
Yes.
[Upgrading, Modifying and Unlocking] Scetian:
Got the same error again. :(

---------- Post added at 08:05 PM ---------- Previous post was at 07:44 PM ----------

got the same error again brother.. :(
[Upgrading, Modifying and Unlocking] elmkzgirxp:
Well, that's odd. It worked perfectly for me...

Try this:

Download Terminal Emulator from Play Store and open it.

Type:

su
dd if=/dev/block/mmcblk0p3 of=/sdcard/baseband.img
[Upgrading, Modifying and Unlocking] Scetian:
dont have to connect it to the laptop now right?
[Upgrading, Modifying and Unlocking] Scetian:
Done :D it worked this time :D and the size of baseband.img is 130mb. i have attached the screen shot of the terminal, when i ran the command.
[Upgrading, Modifying and Unlocking] elmkzgirxp:
Woah, that's barely the size of the zip I attached...

---------- Post added at 07:07 AM ---------- Previous post was at 06:37 AM ----------

Okay, so here's the deal: this may or may not break your phone. This is extremely risky. I haven't tried this out myself yet. You okay with this?
[Upgrading, Modifying and Unlocking] Scetian:
Break my phone... :eek: what do you mean by that? and what exactly are we trying?

---------- Post added at 04:38 PM ---------- Previous post was at 04:09 PM ----------

The baseband you attached was 9.6mb only..
[Upgrading, Modifying and Unlocking] csviktor:
cannot write to storage/sdcard0

is anyone experienced that the sdcard0 changes to read-only without any warning?

i have an unlocked & rooted Y300 with FusionX rom (tillaz)

after reboot I can write to the sdcard0, but after some time it becomes read-only again.

i cannot make any photos, i cannot download anything, cannot delete, etc do anything write-related with the sdcard0

i reinstalled the recovery and the rom, but the problem emerges again.

i'm so f*****g mad.

please help!
[Upgrading, Modifying and Unlocking] mostafa asal:
I NEED HELP WITH THIS

>>>>>>>>>>>>>>>>>>>>>>>>>>

huawei y300

tried to unlock bootloader via ez unlock in order to flash cwm

now the phone open on a blue , green , red display

and i can access dload but any rom stops at about 1\3 progress

tried to re-lock the bootloader using : fastboot oem relock

but my pc can't read the phone when i type : adb-toolkit\bin\files\fastboot devices

although i installed the drivers and the pc can recognize it

how can i solve this?
[Upgrading, Modifying and Unlocking] msdtitus:
cm 11 install fail

hi there

I have a Huawei Y300-0100 build:b191 and recently downloaded cm-11-20140623-NIGHTLY-u8833 and tried flashing my phone using TWRP. I am new to flashing and it failed drastically. Now my phone has no OS and I have no way to install a new 1, I tried searching for the b191 build but with no luck. Can anyone help me fix this problem. is there anyway I can at least install the factory OS and where can I get it(not available on Huawei website)

your help will be much appreciated

Many thanks

Masood:(
[Upgrading, Modifying and Unlocking] derigoagin:
I have a different hauwei but ...

You may be able to root with kingo root without unlocking the bootloader whick does you no good if you want to flash a ROM. If you try someone elses code it will say invalid code and reboot to normal. There is a stock recovery on the phone that does most of what cwm does if the bootloader is unlocked. If you have the bootloader unlocked and you want to flash cwm 6 just go into fastboot on your phone, put the img file in command line friendly location (easy to get to, no simular names) then in your comp terminal cd into the folder you put the recovery img. then type " Fastboot flash recovery <recovery.img> " where <recovery.img> is the name of the cwm recovery img you dl...hope that heled!

---------- Post added at 05:14 AM ---------- Previous post was at 05:08 AM ----------

Some rules about flashing....1. never even touch your phone until you have made a backup of your system. You can search the forums for how this is done.

2. make sure the ROM you are trying to DL is for YOUR MODEL, its not like computers where you can wing it, because the main part, called the kernal, is different in each of the device models. if the cpu is the brain, the kernal is the nervous system...

You will have to learn adb if you want to recover your phone...does it turn on? what happens when you turn it on? can you get to recovery? let me know, ill try to respond as soon as I can...

---------- Post added at 05:25 AM ---------- Previous post was at 05:14 AM ----------

You will have to use fastboot to flash a recovery img onto your phone. make sure it is one that is made for your phone or else your not going to be happy. once you find a recovery img (google is your friend/search the forum) put your phone into fastboot (you will have to look this up too). Then connect your phone to the computer. In the computer command terminal cd to the fastboot directory and make sure you have admin privledges (I have linux and I have to use "sudo fastboot..." for anything to work). type " sudo fastboot devices" on linux or "fastboot devices" to make sure your device shows up. If it does your set to type in " sudo fastboot flash recovery <recovery.img>. once you get that done let me know and ill help you restore your ROM.