yashsingh1/xdaforums huggingface dataset:
[Nexus 7 3G Android Development] PlayerBoy:
See, I did read your guide to the letter, and yes, on step 16 you did say to reboot to finish the installation of the baseband radio, but you wrote to reboot into the

bootloader

, while phonic's instruction said to reboot into the stock

recovery

. And if you did exactly that (booting into the recovery), the screen will display a progress bar to let you know that the update is actually installing. It doesn't do that if you just reboot into the bootloader again.

And pardon me if I implied that your guide was wrong or anything, it's just that I believe this issue will plague many other users updating their N7 firmware (including me), and you already did a bang-up job of posting your instructions on the first page. But many users would follow those steps without realizing that they're missing the crucial step of actually installing the baseband radio update (in the stock recovery). One easy way to check whether the update has installed correctly is by checking the version number on the About Tablet page in Settings. If the Baseband version is still showing 1021 and not 1025, that means the update hasn't been installed properly. Anyway, that's my solution to solve the different version number issue, though it might differ from others. Cheers!
[Nexus 7 3G Android Development] Pithism:
my bootloader already says 4.18, so i was wondering if i should just skip flashing the bootloader img

Or will it not really matter if i just over write it with the same bootloader?

And has the new radio really improved anyones signal?
[Nexus 7 3G Android Development] Sib64:
Why do you want to overwrite your bootlaoder which is already in 4.18 ? You don't need!

And about the radio, as we can see in a lot of ancient posts, that's depends of your country, area ;)
[Nexus 7 3G Android Development] Pithism:
I just didnt know if i had to go in order for the whole process, or if it was ok to skip the bootloader section. Thanks. And i do have pretty good signal, but from time to time, i lose signal and i can only get a signal again if i reboot the device. Not sure if this is a radio issue, simcard/data issue or what.
[Nexus 7 3G Android Development] lockzackary:
Ah hello

I think I was succesful in doing all this

but i would like to confirm if the installation went properly.

On the About Tablet on the settings page

android version is displayed as 4.2.1

while baseband version is 1231_0.17.0_1205

and im still on the build number JOP40D

is really how its supposed to be?

since when i check for system updates, the screen says "your system is up to date"

anyways, i still have my root permissions so i think it went well

but im curious, does this mean that the 4.2.1 to 4.2.2 update is only related to the radio?
[Nexus 7 3G Android Development] Sib64:
OP UPDATED 30 July

Update with the new version Android Jelly Bean 4.3 for the bootloader - radio - recovery ;)
[Nexus 7 3G Android Development] hecspc:
Hello,

I followed all the steps but I think I have bricked my nexus 7. After flashing the radio baseband, my nexus is stuck in the google logo and I cant to boot in recovery mode for fastboot.

Can anyone give some advice? Thanks!
[Nexus 7 3G Android Development] Bongobiker:
Just hold the power button, eventually it will turn off briefly. Hold the volume down and when it re-boots you will be in fastboot mode.
[Nexus 7 3G Android Development] Sib64:
You cannot bricked your N7 except if you delete the bootloader.

Can you go to your bootloader normally ?

Have you made a backup before ?
[Nexus 7 3G Android Development] hecspc:
Yes all steps run ok. The first reboot (after installing the recovery and the bootloader was ok). Then I rebooted into bootloader in order to flash the radio. The flashing was ok but when I rebooted again it got stuck in the google logo.

If i long press all the buttons when it is on then I turn off the nexus (as expected). But once it is off, if I long press all the buttons or power button and vol minus, it does nothing. I have tried for more than 30s and nothing. All I can get is the google logo with the unlock sign.

I do have a backup, but how can I connect the tablet to the computer if I cant get it into the fastboot or recovery mode?

Thanks for answer!
[Nexus 7 3G Android Development] Bongobiker:
Does it not boot to the Google Logo on its own? I was in your situation and it was basically in a bootloop, so I just held down the volume down knowing it was going to re-boot and it entered the bootloader screen.

1. Hold down the power button to turn it off.

2. Just keep your finger on the volume down, don't touch the power button. What happens?
[Nexus 7 3G Android Development] hecspc:
Nothing :(

I hold down the power button and it turns off but it turns on again (I guess this is expected).

If I release the power button and press the volume down, the google logo appears and nothing more..

It the n7 is off and I keep pressing all the buttons nothing happens. The n7 doesnt turn on.

Thanks for your help!
[Nexus 7 3G Android Development] Bongobiker:
OK, turn it off, now hold the power and vol down together.
[Nexus 7 3G Android Development] hecspc:
It turns on but goes to the google logo...

I think there is no solution... I have tried all posible key combinations plugged and unplugged to the computer with no success. Always the google logo.

Even I have tried to make physical battery pull (open the cover, remove the battery, reset with the battery removed and back again).... nothing :(

I guess something was wrong with the bootloader and it is corrupted or something but all commands went ok

Here is a transcript of the the commands

~/Downloads ⮀ fastboot flash bootloader bootloader-tilapia-4.23.img
sending 'bootloader' (2100 KB)...
OKAY [ 0.258s]
writing 'bootloader'...
OKAY [ 4.140s]
finished. total time: 4.399s

~/Downloads ⮀ fastboot flash recovery Recovery_Stock_Tilapia_4.3.img
sending 'recovery' (10240 KB)...
OKAY [ 1.223s]
writing 'recovery'...
OKAY [ 2.453s]
finished. total time: 3.676s

~/Downloads ⮀ fastboot reboot
rebooting...

finished. total time: 0.020s

~/Downloads ⮀ fastboot devices
015d2XXXXXX0d	fastboot

~/Downloads ⮀ fastboot flash radio radio-tilapia-1231_0.18.0_0409.img
sending 'radio' (16384 KB)...
OKAY [ 1.943s]
writing 'radio'...
OKAY [ 4.760s]
finished. total time: 6.702s

~/Downloads ⮀ fastboot reboot
rebooting...

finished. total time: 0.020s

~/Downloads ⮀ fastboot devices

~/Downloads ⮀ fastboot devices

As you can see the first reboot worked normally but the second one, after flashing the radio baseband, did not reboot anymore and I have the same behavior since then.

In case the bootloader is corrupted? What shuould I change. I saw in ebay there are spare motherboards to buy at good price.

Thank you very much for the help.
[Nexus 7 3G Android Development] Mazeri:
I am having the same problem as hecspc, though I did mess up part of my setup (everything did flash ok though).

I created a post in help with the exact details of what I did:

http://xdaforums.com/showthread.php?t=2385695

---------- Post added at 10:35 PM ---------- Previous post was at 09:54 PM ----------

Also, if it helps... when holding volume up and down while holding power the Google logo goes away and the PC detects the device... but shows up as an unknown device.

Not sure if that happens to you hecspc
[Nexus 7 3G Android Development] hecspc:
Sorry to hear this :(

Let's move this topic to that thread then, so we don't spam this one.

If anyone have any advice/clue/idea of how to solve this issue or at least what and why this happened please answer it in the other thread.

Thank you!
[Nexus 7 3G Android Development] Sib64:
Ok, I will verify all my uploads tomorrow, but all comes from Google.

Nothing has been changed, it's purely Google.
[Nexus 7 3G Android Development] Sib64:
Have you reboot to the recovery as I wrote ?

16. Reboot to your recovery for confirm the install - You will see the progress bar moving. When it's done, the tab will automatically reboot into normal mode

It's easy to write that:

Have you respected all of the process, I'm really sorry to say that also, but why it's always the OP who has made an error, and you never !!!

So please don't post this type of words !!!!

Thanks in advance.
[Nexus 7 3G Android Development] Mazeri:
After flashing the radio and doing fastboot reboot the device rebooted but did not go to recovery... instead it went to the Google logo and got stuck.

I don't think anyone is saying this is the OP fault or that anything is wrong with the files you posted, crap just happens... in my case I did mess up the steps. We are only looking for help to fix the problem, not pointing fingers :)
[Nexus 7 3G Android Development] Sib64:
I know ;)

Strange, that you didn't reboot to the recovery...after flashing the radio

I will control all of my files but closed temporarly the thread.

I'll work to find a solution quickly
[Nexus 7 3G Android Development] Sib64:
If you can go to the bootloader you can restore via ADB

I close temporarly for files control
[Nexus 7 3G Android Development] Sib64:
All files are new and uploaded from factory image JWR66V.

I wasn't sure about files from OTA JSS15J. So I came back to the proper files from Google Factory Image JWR6V.

Normally all is good and if you follow the process, you won't have any problem ;)
[Nexus 7 3G Android Development] Disket:
Sorry, but at which part do u flash the JB 4.3 update? I followed the instructions and everything went without a hitch. Bootloader is now 4.23 and radio is 0409. But Android version is still 4.2.1.
[Nexus 7 3G Android Development] Disket:
Nevermind! Flashed the image .zip from Google and now I'm on 4.3!
[Nexus 7 3G Android Development] rthisp:
Everything is OK now ? Can I use your guide without that error described above ( it's a file related problem ?)

Thank you very much for this guide!

Enviado do meu Nexus 7 por meio do xda premium
[Nexus 7 3G Android Development] Cusciolino:
Hi guys! :)

What's up? I've a problem updating my Nexus 7 3g to Android 4.3!

Nexus 7 in locked and not rooted so it's full stock!

After OTA update, nexus freeze on recovery menu with a big red triangle!

Power+ volUP and appear an error: like in attachment

After reboot, nexus freeze on "X" and going into bootloop!

So I re-flashed factory image 4.3 from Google via Fastboot..

everything ok but Nexus get the same error of OTA when try to intall radio.img.

Nexus work ok but 3G module don't work and baseband on system info appear "unknow"!

How can I solve it?

Don't forgive that my N7 is full stock, stock recovery, locked and unrooted.
[Nexus 7 3G Android Development] Sib64:
It was normal, you have updated the bootloader and the radio baseband, not the rom :p

Yes you can ;)

I wasn't sure from the JSS15J files, that's why I've prefered using the original files from Google images

If you are not rooted you cannot used this guide.

You need to be root (mini) and unlocked (it's not obligatory)

If you want to update to 4.3, you need to waiting OTA version
[Nexus 7 3G Android Development] denicay:
Hi all,

I'm now using CM10.1.2 (android 4.2.2, bootloader 4.13, baseband : 1231_0.10.0_1021) and i'm wondering if i can update the bootloader and the radio using this guide, or have i to upgrade my android version to 4.3 before updating to the latest bootloader and radio ?

Thank you.
[Nexus 7 3G Android Development] Cusciolino:
I've not been clear.. sorry. :P

I've recived OTA update to 4.3 but when I've installed it, Nexus gave me the error in attachment and Nexus went in bootloop on "X" animation.

So, I unlocked my N7 and rooted to reinstall factory image 4.3 from google but I had got the same error like with OTA update.

So which is the issue? Why I can't flash the baseband radio?
[Nexus 7 3G Android Development] SirRastusBear:
I was going to post a thanks to OP for the helpful guide, but saw your post & thought I'd help a little to give some back...And, actually you need to update the bootloader & radio BEFORE the up to 4.3 Android version...

Back to my original reason for post:

And thanks Philo, for this helpful thread!
[Nexus 7 3G Android Development] denicay:
Thank you for your answer SirRastusBear.

And my turn to thank Philo a lot for this helpful and clear guide :)
[Nexus 7 3G Android Development] denicay:
Done :D

My bootloader version is : 4.23, and my baseband version is : 1231_0.18.0_0409

Thanks for this guide :good:
[Nexus 7 3G Android Development] Cusciolino:
Anyone can help me?

Do I need to send the device in assistance?

Inviato dal mio Galaxy Nexus con Tapatalk 2
[Nexus 7 3G Android Development] Sib64:
Sorry but I gave you an answer

Go to post #57 ;)

Return to assistance service :( Sorry for you
[Nexus 7 3G Android Development] raineru:
I always get bootloop whenever installing the OTA from google...

but because of that, my bootloader changed into 4.23 and my radio was changed to 0409...so I basically just follow the rest of your guide and other's tip too, by flash fastboot the 4.3 image from google...

and now it works! thank you all for the great posts, they helped me a lot
[Nexus 7 3G Android Development] globula_neagra:
My story

Updated to 4.3 via OTA (Today i bought the tablet)

No 3g after the update, No Baseband.

I said, lets try to flash the stuff via fastboot how i do on other devices.

Downloaded the stuff from https://developers.google.com/android/nexus/images#nakasigjwr66v and install the adb/fastboot drivers

I turn on the script, the tablet prompts, DO YOU WANT TO UNLOCK BOOTLOADER, selected no(because i wanted to fix the issue without unlocking the bootloader, because i just received the device), MEANWILE, the bloody script was running and deleted f.....g everything from the tablet, how, ho the f... knows because the tablet was locked and in theory you are not supposed to be allowed to delete the partitions.

Then i said, ok, it is unlocked, i should be able to fix the baseband and radio by flashing them

C:\ADB\sdk\platform-tools>fastboot flash radio C:\Downloads\Software\nakasig-jwr

66v-factory-aebc7b11\radio-tilapia-1231_0.18.0_0409.img

sending 'radio' (16384 KB)...

OKAY [ 2.005s]

writing 'radio'...

FAILED (remote: (BadParameter))

finished. total time: 2.022s

C:\ADB\sdk\platform-tools>fastboot erase radio

erasing 'radio'...

FAILED (remote: (BadParameter))

finished. total time: 0.025s

C:\ADB\sdk\platform-tools>fastboot -w update C:\Downloads\Software\nakasig-jwr66

v-factory-aebc7b11\image-nakasig-jwr66v.zip

archive does not contain 'boot.sig'

archive does not contain 'recovery.sig'

archive does not contain 'system.sig'

--------------------------------------------

Bootloader Version...: 4.23

Baseband Version.....: N/A

Serial Number........: xxxxxxxx

--------------------------------------------

checking product...

OKAY [ 0.030s]

checking version-bootloader...

OKAY [ 0.021s]

checking version-baseband...

FAILED

After some restarts, i flashed only the boot.img and system, left the tablet to boot normally and 3G WORKING

The baseband version is 1231_0.10.0_1021

I have doubts now if i bought a stable device, anyway, this was the most stupid experience of mine with android devices.

Can i flash the radio via recovery ? Did someone made a zip pack ?

This radio sucks on wifi side
[Nexus 7 3G Android Development] Cusciolino:
I have the same problem :(

Inviato dal mio Galaxy Nexus con Tapatalk 2
[Nexus 7 3G Android Development] globula_neagra:
If someone that has a working nexus, and knows on which emmc partition is stored the radio, can help us fixing our device by dumping that file.

So someone, can we be offered 2 kilos of pity ?
[Nexus 7 3G Android Development] kamaliqwan:
DONE!! Thanks a lot man!
[Nexus 7 3G Android Development] globula_neagra:
Partially 3G RADIO FIX

I managed to partially fix the issue

What I did.

1) Mounted radio-tilapia-1231_0.18.0_0409.img in Linux (sudo mount -o loop radio-tilapia-1231_0.18.0_0409.img radio/ i previosly created the directory radio)

2) Copied the radio_update.zip

3) Rebooted the Tablet in RECOVERY

4) Pressed Power Key and Volume Key Plus (first power key, while you keep the power pressed, press the volume key for 2 seconds, release, this will enable stock recovery menu)

5) Select "Apply Update From ADB"

6) Issue the command "adb sideload radio_update.zip

7) Wait till the update goes to end,, and select Reboot system now.

Now when you check in Settings/About Tablet/Baseband, you should have the Baseband which you applied via adb sideload

LE: YOU NEED TO HAVE STOCK RECOVERY
[Nexus 7 3G Android Development] Cusciolino:
no such file or directory when I try to mount :(

can you post your radio_update.zip?
[Nexus 7 3G Android Development] globula_neagra:
I will upload it tomorrow, as it is on the linux machine
[Nexus 7 3G Android Development] globula_neagra:
Done, it is here

http://globula.arctablet.com/Nexus7/radio_update.zip
[Nexus 7 3G Android Development] Cusciolino:
thank you so much bro! :D

however problem persist :(
[Nexus 7 3G Android Development] globula_neagra:
Does your 3g works now ?

This fix does not solve the problem with the display of the radio in fastboot, it just allows you to use the latest radio
[Nexus 7 3G Android Development] Cusciolino:
no :( it can't flash it! But I don't know why :/
[Nexus 7 3G Android Development] globula_neagra:
I forgot to mention, you need to use the stock recovery !!!
[Nexus 7 3G Android Development] Cusciolino:
It's the same ;(
[Nexus 7 3G Android Development] globula_neagra:
Can you post the values of these commands

ls /dev/block/mmcblk*

cat /proc/partitions
[Nexus 7 3G Android Development] faust.deaconu:
Same here
[Nexus 7 3G Android Development] Cusciolino:
Where do I find it?

Inviato dal mio Galaxy Nexus con Tapatalk 2
[Nexus 7 3G Android Development] globula_neagra:
adb shell

and you enter the commands
[Nexus 7 3G Android Development] Cusciolino:
Here

Inviato dal mio Galaxy Nexus con Tapatalk 2
[Nexus 7 3G Android Development] LordDeath:
I tried to update my bootloader and radio rom with this factory image from Google: https://dl.google.com/dl/android/aosp/nakasig-jwr66y-factory-bdbb7bd7.tgz

I couldn't update the tilapia bootloader because fastboot reported a "Signature mismatch". Then I downloaded the files from the first post in this thread and they worked without any problems!

At first I flashed the bootloader, then rebooted the new bootloader and then I flashed the new radio rom. The bootloader is now reporting the new versions and in Android also the baseband version has changed. Unlike the instructions from the first post I did not need to switch from TWRP to the stock recovery.

But I am still confused about the signature mismatch with the files from the original source. Compared to the files in the 1st post they have different MD5 hashes.
[Nexus 7 3G Android Development] Sib64:
In the factory image, you have the bootloader and radio, so you don't need to update separately.

If you install the factory image JWR66Y, you will have the latest version of the bootloader and radio ;)
[Nexus 7 3G Android Development] LordDeath:
I didn't try to flash the full factory image. I just wanted to do what the "flash-base.sh" was doing. It is doing this:

fastboot flash bootloader bootloader-tilapia-4.23.img
fastboot reboot-bootloader
sleep 10
fastboot flash radio radio-tilapia-1231_0.18.0_0409.img
fastboot reboot-bootloader
sleep 10
[Nexus 7 3G Android Development] thephenom696:
hm

What's new in the new bootloader .23? any changelog?
[Nexus 7 3G Android Development] Cusciolino:
Solved! Sostitution of motherboard :)

Inviato dal mio maguro con Tapatalk 2
[Nexus 7 3G Android Development] bigsee:
radio.img

Hey! I need an advice! I flashed all of the 4.3 (boot-recovey-system-userdata) except the radio. When I reach the radio.img the output is:

sending 'radio' <16384 KB>...

OKAY [1.950s]

writing 'radio'...

FAILED <remote: <BadParameter>>

finished. total time: 1.974s

I tried to reboot into fastboot and then into recovery but nothing happened, I didn't see a progress bar showing the finish of the update... We are now on Baseband 1231_0.17.0_1205 and unable to update it.

What's next?
[Nexus 7 3G Android Development] bigsee:
Ooops, I found a solution, it worked:

http://xdaforums.com/showthread.php?t=2416567

What I did.
1) Mounted radio-tilapia-1231_0.18.0_0409.img
2) Copied the radio_update.zip
3) Rebooted the Tablet in RECOVERY
4) Presse Power Key and Volume Key Plus (first power key,
while you keep the power pressed, press the volume key for 2 seconds, release)
5) Select "Apply Update From ADB"
6) Issue the command "adb sideload radio_update.zip
7) Wait till the update goes to end,, and select Reboot system now.

Thanks for globula_neagra !!!
[Nexus 7 3G Android Development] dppow:
Anyone realise the charging animation(device off) is darker after the update?
[Nexus 7 3G Android Development] tomgreen99:
Thank you!!!!!! :ddd

Saved my ass, I am so thankful!
[Nexus 7 3G Android Development] ziropic:
I have problem . when type Fastboot Flash Bootloader Bootloader.img

sending 'Bootloader' (2100 KB)...

OKAY [ 0.325s]

writing 'Bootloader'...

FAILED (remote: Invalid Partition name.)

finished. total time: 0.423s

Please help me , what can i do ? i do full erase and now my device just turn on with fastboot
[Nexus 7 3G Android Development] ryukisai:
Did you try renaming the file as bootloader.img and not Bootloader.img ? Linux / android are case sensitive OS !!
[Nexus 7 3G Android Development] Sib64:
Delete
[Nexus 7 3G Android Development] sudipt123:
Hi,

Thanks for this guide, I am running Modaco Custom ROM JR10. I upgraded the bootloader and Radio using the guide. However the ROM still shows 4.2.2 and the Old Bootloader 4.18. However the stock recovery shows 4.23 and the new radio. How can i upgrade to KITKAT- also can i flash cm 11 directly after this?

Thanks
[Nexus 7 3G Android Development] Sib64:
OP UPDATE with 4.4.4

OP update with all files from Android 4.4.4...

I've added to Post 2 with factory image and all binaries files ;)
[Nexus 7 3G Android Development] wiadrovit:
Signature mismatch while flashing bootloader.

sending 'bootloader' (2100 KB)...

OKAY [ 0.399s]

writing 'bootloader'...

FAILED (remote: (InvalidState))

finished. total time: 0.536s
[Nexus 7 3G Android Development] Sib64:
Have you checked md5?

Give me feedback, please ;)

Sent from my N7 LTE from XDA Assist and use TapatalkPro
[Nexus 7 3G Android Development] Dave_Ro:
I got that error too.

The bootloader MD5 is:

5bdb2e87370cdb1a7ea14bb0c3e21390 bootloader-tilapia-4.23.img

I was trying to update 4.3 (nagasig JRW66Y) to KTU84P. I want to return the device to stock, unrooted, so it wil accept OTAs.

I recalled that when I'd manually updated to JRW66Y I'd had a similar (?) problem and had to restore the bootloader to the one from JRW66V. Note however, that the installed radio is from JRW66Y.

After a bit of reading I decided to just flash system and recovery and format the cache (because there was an OTA to 4.2.2 in it.)

That flashed OK - but won't boot: I get endlessly spinning coloured dots. So I've restored the device to JRW66Y by reflashing system.
[Nexus 7 3G Android Development] zhiwlin:
Can I use the custom TWRP recovery to flash the factory image (since it is zip), or some other way to flash? I want to reset my tablet to factory stock rom.

Also, does this automatically upgrade the bootloader and radio using this factory image?
[Nexus 7 3G Android Development] luala:
I failed in bootloader step and got following error from rooted stock ROM 4.4.

------------------------------------------------

C:\platform-tools>fastboot flash bootloader bootloader.img

sending 'bootloader' (2100 KB)...

OKAY [ 0.282s]

writing 'bootloader'...

FAILED (remote: (InvalidState))

finished. total time: 0.424s

-------------------------------------------------