yashsingh1/xdaforums huggingface dataset:
[LG Optimus L9 P760, P765, P768, P769] br0adband:
So then the final question (since I know things are just going off the rails at this point): is it worth the trouble of doing all this rather complicated effort to get the Wind version installed on this relatively new P769 of mine? I mean, I've used some complex devices over the decades, and I've been mucking around with ROMs on devices for a long long time as well but this L9 seems to have the most singularly complex methods of rooting and ROM flashing that I've ever encountered in my experience.

I know it's a great phone (so far in my usage, at least), and I was just outside a few minutes ago on the balcony of my apartment building and rather pleased to note that - at least on full brightness - the 4.5" display is rather easy to read even when I was holding the phone in direct sunlight, so that's a big plus considering summer is almost upon us here in Sin City.

But I'm still not seeing any major positives to pushing a JB update on this device even though it's obviously more than capable of the update overall.

Should I, shouldn't I, that eternal question always lingers... :D

ps

Wi-Fi calling is a gimmick in my opinion, and since I use the $30/plan with 100 minutes of talk time, it won't do any good for me at all either - I use Google Voice + Talkatone for VoIP duties and rarely ever touch the 100 minutes, actually.
[LG Optimus L9 P760, P765, P768, P769] Cobra11Murderer:
I use Wi-Fi calling due to the fact that coverage isn't all that great when I go to a friends house, I could and here and their do use Talkatone but its not as clear on voice calls compared to regular.. not sure if my settings are messed up or what..
[LG Optimus L9 P760, P765, P768, P769] bleuwave:
Trust me, flash this rom if you don't need wifi calling or are not with tmobile.

It's better, also includes apps to sd card.

http://xdaforums.com/showthread.php?t=2287404
[LG Optimus L9 P760, P765, P768, P769] Juanito216:
I don't really need WiFi calling. My signal is like, always strong in my city.
[LG Optimus L9 P760, P765, P768, P769] br0adband:
I decided to chance it and flashed this Wind ROM (V21B) with the instructions from the "Offline Flashing" thread and was successful, but it's not reading the T-Mobile microSIM so it's basically stuck in the water, so to speak. Decided to redo it using the available T-Mobile V20D Jelly Bean ROM and even in spite of following the instructions in that Offline Flashing thread to a T - I'd just done the same thing to get the Wind ROM on it so I know the instructions are valid - now I can't get the T-Mobile ROM flashed because the update tool can't see the phone for some reason.

Rechecked everything, redid the steps twice, reset the phone, pulled the battery, did everything pretty much exactly the same (checked to make sure the debugging and unknown sources are checked, unchecked them both and rechecked them to make sure), restarted the phone a 3rd time and still the update tool can't see the phone. It shows up in Device Manager as required (LG modem and LG composite device), etc.

Am I not able to reflash or back up? Hrmmm... will keep trying I suppose, may just drop back to ICS and be done with it (assuming of course I can get this working again, that is).
[LG Optimus L9 P760, P765, P768, P769] bleuwave:
Did you try a factory reset?

Turn off and press volume down +home and power to initiate
[LG Optimus L9 P760, P765, P768, P769] br0adband:
I've done most everything at least 3 times so far (and tried 3 different USB cables, 3 different USB ports, etc) - the update tool is simply not seeing the phone anymore. It's listed in Device Manager as required (as stated, LG modem and LG USB composite device), then I'll restart the shttps server (with a freshly extracted copy), restart the update tool (also a freshly extracted copy) and even in spite of being able to see the device with Explorer, etc, the update tool simply can't find it anymore; the resulting codes are supposed to be:

0 = no device

1 = Normal connect

2 = Emergency connect

and each time it's 0, so I'm stumped now as to how to proceed. I'm able to use the P769 with T-Mobile and calling, but there's no data connection whatsoever which seems a bit odd considering I have data service and was using it an hour ago. I've used the hidden menu to ensure I'm set for automatic network setup, but the APNs under Mobile Networks aren't there - that screen is totally blank which is most likely why I'm not getting any data. I mean the page is completely blank when I select that option, it is as white as a blank sheet of paper with no info whatsoever.

I'm a bit baffled at this point, guess I should have just been patient and waited for T-Mobile to get around to dropping a proper fixed JB update. :P

Edit: will try to manually input the T-Mobile APN info and see what happens but at this point I'd just prefer to flash the V20D and see what that's doing, if I'm not happy with that because of the bugs then back to V10G if possible.

Second edit: well that didn't work either, it won't actually save the APN data I input (got it from a T-Mobile support page) so... it's broke-dead for data presently, geez. :(
[LG Optimus L9 P760, P765, P768, P769] bleuwave:
Try entering the apn correctly and see if it saves. If not, it's most likely data corruption stemming from your previous T-Mobile rom

I have tmobile version of the p769 and the wind jb works perfectly for me. I did do a factory reset before the initial boot of the wind ROM by unplugging the battery right after the completion of flash and doing a hard reset.
[LG Optimus L9 P760, P765, P768, P769] br0adband:
I can comprehend a little data left over since no, I didn't do a full blown factory reset before the initial flash, but what I can't comprehend now is the update tool not seeing the phone anymore when all the PC connectivity appears to be functional across the board. I suppose I'll just wipe everything clean from the PC, get rid of all the software installed, all the LG drivers, and restart this and hope I can drop back to V10G, I've had enough with JB at this point - obviously a properly working phone (without that Wi-Fi battery life issue) is more valuable than a smoother running but somewhat janky device.

Let's hope this whole clean start thing works...

Edit:

And no, this is pretty much dead in the water now. APN data will not save, the LG update tool doesn't see the phone anymore (the status is always 0 even in spite of the device plainly being attached, showing up as required in Device Manager, other modes of operation like typical USB connectivity work just fine, can copy files to the device without issue from the PC). Did the full clean start of everything, using the latest 3.8.1 USB drivers, and so on.

Dammit... :(
[LG Optimus L9 P760, P765, P768, P769] sm_x:
Can this be flashed on a locked t-mobile P769. If so can some1 point me in the right direction?
[LG Optimus L9 P760, P765, P768, P769] Kid_Ding:
Are you using menu>save APN? Back button discards any settings. Also if epic.tmobile.com does not get you connected try fast.tmobile.com

---------- Post added at 04:44 PM ---------- Previous post was at 04:43 PM ----------

epc.tmobile.com not epic lol

---------- Post added at 04:46 PM ---------- Previous post was at 04:44 PM ----------

http://xdaforums.com/showthread.php?t=2173465
[LG Optimus L9 P760, P765, P768, P769] br0adband:
Yes, it was not saving the APN data by using Menu -> Save. Anywhooo...

After a somewhat even more convoluted process requiring me to muck around with fastboot in the omap4fastboot thread, I got the device recognized so it could be "seen" by the updater and then flashed V20D on it, presently doing a factory reset since it left some data from the Wind ROM around.

Now that I finally have the JB ROM on it I'll do some testing and see how it goes, I'm sure the Wi-Fi battery/power thing didn't just magically skip over me so I'll keep an eye on it. But at least now I can get to flashing again. Odd why that happened but, sometimes things do. ;)
[LG Optimus L9 P760, P765, P768, P769] bleuwave:
I've found that sometimes it's just a matter of restarting my computer to get the device recognized. It would suck if that was the reason.

Good luck on the tmobile rom and never stop trying :)
[LG Optimus L9 P760, P765, P768, P769] br0adband:
Yah, I did multiple reboots, it wasn't the PC (laptop, actually). It was something with the phone because as I said, with the Wind ROM installed (and lacking the APNs or ability to save them), I could still access the phone over the USB cable with MTP access, the LG software mode (not meaning the software upgrade mode), and everything related to that - including getting the fastboot working by those instructions in the omap4fastboot or whatever thread - means the connection was there, but for some strange reason that LG updater tool would not see the phone.

But anyway, it's all good now so that's that. The JB ROM ain't bad so far, yes it's bloated as expected, and in 6 minutes of using the Wi-Fi the battery usage for it shows 167% (phone time on is just under 26 minutes so yeah, it's not great at all but at home it's a non-issue I suppose).

Funny thing is someone just offered to buy this phone from me so I'll be making a profit off it in about an hour.

Time to change the sig again... :D
[LG Optimus L9 P760, P765, P768, P769] kevev:
I had the same issue with no APNs on V21B. I had to enter them manually after a factory reset. They stuck on my device.
[LG Optimus L9 P760, P765, P768, P769] Supamike88:
Did you delete the added lines to the host txt file on your computer?
[LG Optimus L9 P760, P765, P768, P769] kevev:
If you want to download a KDZ directly from LG you will need to remove the two lines added.
[LG Optimus L9 P760, P765, P768, P769] Nathan.7118391:
I don't think it's worth the trouble frankly. I an very tired of the battery drain and some apps just dumping or force closing on me so I just reverted back to ICS until they fixed the problems. My ICS was great and so I thought that JB would be just a bit more which it is! But the batter drain and minor little glitches just didn't make it worth it anymore. Just my opine.
[LG Optimus L9 P760, P765, P768, P769] Nathan.7118391:
Ok try putting your phone into s/w upgrade mode and do a traditional kdz offline flash. Set your settings to 3gqcc or something like that and set to emergency mode then flash kdz v10g or v20d which ever you have. It doesn't matter because you just want to get back to US standards. This is why they have specific ROMs. Good luck
[LG Optimus L9 P760, P765, P768, P769] elpuertorro:
And just to recap!

And just to recap kids remember to do a FACTORY RESET after flashing this, so you don't run in to the above troubles and what not :p
[LG Optimus L9 P760, P765, P768, P769] cgigate:
Canadian 21B Rom is awesome, fastest and cleanest rom so far, it works super good on T-Mobile and at&t
[LG Optimus L9 P760, P765, P768, P769] nojooms:
Download Link

Hello,does anybody have a download link for that rom
[LG Optimus L9 P760, P765, P768, P769] Kid_Ding:
Here is cwm backup.

http://xdaforums.com/showpost.php?p=41888126&postcount=280

---------- Post added at 09:09 PM ---------- Previous post was at 09:08 PM ----------

also you can grab the kdz and hex edited bin from here if you want to offline flash.

http://xdaforums.com/showthread.php?t=2284446
[LG Optimus L9 P760, P765, P768, P769] nojooms:
thanks for the fast reply,i am looking for kdz file download,the link in that thread doesn't work
[LG Optimus L9 P760, P765, P768, P769] Kid_Ding:
Have you added the two lg domains to your host file? Open via notepad during the offline flash method. They need to be removed to DL from lg.
[LG Optimus L9 P760, P765, P768, P769] nojooms:
I am aware of the host file, LG update tool tells me i have the latest one, no need to update.
[LG Optimus L9 P760, P765, P768, P769] Kid_Ding:
OK, then you should be able to download the file

http://csmgdl.lgmobile.com/swdata/WDLSW/LGP769/AAWCBK/V21b_00/V21B_00.kdz
[LG Optimus L9 P760, P765, P768, P769] kuma82:
Has anyone noticed files still being left behind after flashing and hard reset? Maybe LG was just being lazy and left the extra stuff for the t-mobile version. For example, inside /etc is still the disable_tmus_packages.sh (at least in mine it is) hum. I'm do an extraction of the kdz (v21d) and see if it really suppose to be there, along with a couple of other files. (Thanks to camhendra tutorial)
[LG Optimus L9 P760, P765, P768, P769] MikeyMikeLive:
Can someone post a cwm backup because they don't have one up on the post listed prior. Plus, I don't feel like doing the kdz method.
[LG Optimus L9 P760, P765, P768, P769] Kid_Ding:
Rooted_CWM_BACKUP_P769_V21B_by_kid_ding.zip 571 MB https://docs.google.com/file/d/0B4DMhed-iRMVSHlsSF9GR2Vvb2c/edit?usp=sharing
[LG Optimus L9 P760, P765, P768, P769] MikeyMikeLive:
Thanx :)
[LG Optimus L9 P760, P765, P768, P769] kuma82:
MikeyMikeLive hit the thanks button, on Kid_Ding's post ;)
[LG Optimus L9 P760, P765, P768, P769] Fatty1212:
I downloaded and flashed via Artas' CWM, it won't flash. I got the Android with the molecular ring. Im sure its good back up, maybe the cwm is the issue? Will try again after work..
[LG Optimus L9 P760, P765, P768, P769] Kid_Ding:
thanks guys!

---------- Post added at 08:40 AM ---------- Previous post was at 08:32 AM ----------

that's the one i used to make the backup. sorry it's giving you trouble. here's one that i made with unlocked bootloader recovery by lelus. maybe you will have better luck with this one. once it boots you will need to install the recovery by Artas.

Rooted_CWM_BACKUP_P769_V21B_by_kid_ding.zip (569.1 MB)

https://mega.co.nz/#!sodg1K5A!G_4sbQ...NDSIEs0owQ-DKQ
[LG Optimus L9 P760, P765, P768, P769] csrow:
Thanks for the file. I've switched over to V21B and everything seems to be working fine. I have not tested wifi tethering yet. I will do it this evening.

Let's see if 4G battery usage is any better than the V20D.
[LG Optimus L9 P760, P765, P768, P769] Fatty1212:
The file needs a decryption key, sorry.. do i have to make an account or something? Thanks for helping out.:good:
[LG Optimus L9 P760, P765, P768, P769] Kid_Ding:
I'll reupload to my Google drive account.
[LG Optimus L9 P760, P765, P768, P769] cgigate:
you cannot use your Google drive/dropbox/box etc account to do massive share, they will shut down your account very soon exceed the traffic quota.
[LG Optimus L9 P760, P765, P768, P769] Kid_Ding:
Please, any suggestions are welcomed.

---------- Post added at 02:11 PM ---------- Previous post was at 01:28 PM ----------

I goofed, I did not insert the full url last reply.

Rooted_CWM_BACKUP_P769_V21B_by_kid_ding.zip (569.1 MB)

https://mega.co.nz/#!sodg1K5A!G_4sbQXZouNUb3GZWpuvNi-lbStKBNDSIEs0owQ-DKQ
[LG Optimus L9 P760, P765, P768, P769] Fatty1212:
Downloading now, hopefully will be able to test this backup. Thanks!
[LG Optimus L9 P760, P765, P768, P769] csrow:
I've added the back up file link to the OP.

The wifi tethering works fine once the apn-conf.xml file is edited. Battery usage seems about the same. Really can not tell any functional difference except for less bloatware.

For me, I had to restore the APN file from V20D in order to make the data service work.
[LG Optimus L9 P760, P765, P768, P769] Fatty1212:
Tried flashing the locked and unlocked cwm back up of kid_Ding. No go for me, had the upside down android in both cases. It must be the recovery, im not sure. I did try via offline install, got the wind JB working only for voice calls, data was non existent. Stuck with V20d at this point, rooted of course. Im good for now..no more trials for me :)
[LG Optimus L9 P760, P765, P768, P769] csrow:
Before you switch over to V21B, make a copy of Tmobile APN by using 'apn backup' app from the Play store.

Once you install the V21B, then the data will not work. Use the 'apn backup' app to restore the Tmobile APN that you had saved before. Then the data will work fine.
[LG Optimus L9 P760, P765, P768, P769] Fatty1212:
Three questions csrow, APN backups will save to external SD? What APN app is that in particular? And is the v21b working after you restored APN settings? Just wondering... Thanks for the mini guide. This should be stickied, perhaps?

PS makes me want to flash it again! :)
[LG Optimus L9 P760, P765, P768, P769] csrow:
1) Yes, you can save it to external SD.

2) It's called APN backup & restore. Just back up V20D APN before you switch over to V21B. Then just restore the saved APN.

https://play.google.com/store/apps/details?id=com.riteshsahu.APNBackupRestore&feature=search_result#?t=W251bGwsMSwyLDEsImNvbS5yaXRlc2hzYWh1LkFQTkJhY2t1cFJlc3RvcmUiXQ..

3) V21B is working fine I think (although I can not prove it) the phone signal reception is better with the new baseband. The wifi tether works fine too after the apn-conf edit.
[LG Optimus L9 P760, P765, P768, P769] psychoace:
For those of us who would like a better apps to sd option check out the app "gl to sd" . It can install more apps and games to your memory card then normal and only a slight inconvenience. It doesn't seem to run on anything but stock rooms for me but I could be wrong. Hope this helps you all gain some more internal space back.
[LG Optimus L9 P760, P765, P768, P769] Juanito216:
Would running this ROM lock my boot loader?

Sent from my LG P769
[LG Optimus L9 P760, P765, P768, P769] cgigate:
yes and no.

if you do KDZ flash, it will overide and lock your your bootloader.

if you do unlocked bootloader cwm restore the backup , everything will keep
[LG Optimus L9 P760, P765, P768, P769] Juanito216:
I did use the backup and I ran the ROM. I'm back on Cyanogen too, but I'm back on it because I wasn't able to successfully restore one of the provided V20 backups so I can backup the APN. Has anyone successfully restored a V20 backup with an unlocked bootloader?
[LG Optimus L9 P760, P765, P768, P769] cgigate:
I am on v21b with unlock bootloader!
[LG Optimus L9 P760, P765, P768, P769] psychoace:
Yes, but I just entered in my apn manually. It only takes a couple of minutes
[LG Optimus L9 P760, P765, P768, P769] Juanito216:
Is that done through an app?
[LG Optimus L9 P760, P765, P768, P769] psychoace:
Nope, just go to system settings, more, mobile networks, access points. Then hit the menu button and select new apn. Now Google T-Mobile apn or whatever network you are using. Do that on your computer. You then find the settings you need to enter
[LG Optimus L9 P760, P765, P768, P769] Fatty1212:
I finally have this Wind JB version! Looks Cool!
[LG Optimus L9 P760, P765, P768, P769] Juanito216:
I was able to download/install another V20 back up and get the APN from there. Now running the Wind JB build with data.
[LG Optimus L9 P760, P765, P768, P769] kevev:
Question

What radio version does everyone have with this ROM?

I have: L6260_MODEM_SIC_01.1230.00
[LG Optimus L9 P760, P765, P768, P769] Tablechair:
Same as Kev.
[LG Optimus L9 P760, P765, P768, P769] csrow:
Same here. 1230.00
[LG Optimus L9 P760, P765, P768, P769] kevev:
Thanks Guys. I was worried that I had the wrong baseband. From what I am seeing around the forum the P760 JB ROMs have the same firmware version number.

I am not sure if they are really the same version. I am planning on posting a new thread with radio version information.
[LG Optimus L9 P760, P765, P768, P769] cgigate:
yes, lg L9 radio version # is fake
[LG Optimus L9 P760, P765, P768, P769] villan.co:
would you happen to have the x-loader and u-boot for this? or a link to the kdz? thanks.
[LG Optimus L9 P760, P765, P768, P769] kuma82:
This u-boot doesn't recognize unlock status. I think I still have the kdz but I won't be able to extract it until tomorrow. There is a newer version that came out about a week ago.
[LG Optimus L9 P760, P765, P768, P769] villan.co:
this firmware appears to be "open", like v20b was, only, with the addition of a little branding. fwiw, the hidden menu shows my bootloader is unlocked. are you sure you didn't put it on a locked phone, and have mistaken which one you are recalling? i'll take your word for it, and use v20f's x+u for this for now, and worry about testing the x+u later. lemme know when you find the kdz link again, that would be nice to try out.
[LG Optimus Black] Pollie81:
this is not really important but i'm just curious to know..

Are there more OB users here that came to the point where they want to buy something new to replace our OB?

I am..

I have had a really great time here on xda and with my OB (unlike many others i was very satisfied with this phone, probably because of the great roms here).

To bad some dev's aren't here anymore..

anyway, i don't have a new phone yet but am looking for one and so far it seems that the Sony Xperia T is going to be my next one.

Why? It looks great, has great hardware en the price is right.. Also something i find very important is that it's easy to root/customise.. (offcourse i want to stay here to get some great custom roms for my next phone).

And Sony seems to be a great phone for custom development.

HTC also has some great models but are harder to customise..

So, are there more people who are looking for a new phone? What are you going to buy and why?

Or maybe you already bought another phone..
[LG Optimus Black] ykumar00:
Definitely the nexus 4. Easy to customize, easy to root/flash, excellent dev support, amazing hardware, small price. Everything you want. Sony phones are generally difficult to unlock/root cuz of locked bootloader, etc.

And I am also planning to buy the nexus 4, it released officially in India just now. :D
[LG Optimus Black] Pollie81:
it's indeed a great phone and here in the netherlands it's already for sale since half april but for me it's way over budget.
[LG Optimus Black] ykumar00:
Then maybe you should go for a Samsung. They also have unlocked bootloaders, good dev support, and see easy to root/flash/restore. Also, unlike the OB, Their hardware works very decently with custom roms.Afaik most htc and Sony phones have locked bootloaders.
[LG Optimus Black] Pollie81:
i thought about that too..

also i've done alot of reading on xda to find a phone wich has some good devs.

sony xperia is easy to root/revert/customise, HTC is much more risky..

Xperia T already has some great custom roms and kernels so that's a good thing, you only need to buy a carrier free version so you can unlock the bootloader.

If i want to buy a Samsung within my budget, it will be the Galaxy SII. Also a really great phone but it's old. although it's hardware is quiet good it somehow makes it less interesting. the positive side? it has great support on xda.

one thing that i've read about the SII is that the screen is really good, resolution is lower then the Xperia T but it still seems to be better..

tough choice..
[LG Optimus Black] ykumar00:
All the best! I don't know much abut Sony, but I've had experience with the Sony Ericsson Xperia Neo V, was a pain in the a** to root....you have to flash an earlier kernel before you root, and then you have to unlock the bootloader....for that you need to use fastboot, flashtool, and whatnot. Y have to flash a custom kernel if you want cwm... so my general opinion about Sony is that it's too much hassle, but that's the only Sony phone I've messed with. And definitely no LG either! :D
[LG Optimus Black] MEC-777:
I suggest the Samsung Galaxy SII X. My sister in law just got one. It's hardware is faster/more powerful than the standard SII. I've only played around with it a few times, but it's fast and has a very nice display.

It's probably just as easy to root/install custom ROM's as it is for the standard SII.

Good luck in your search. :)

I too am thinking about replacing my OB, but not anytime soon. Just seeing what else is out there for now.
[LG Optimus Black] Pollie81:
we don't have the sgsIIx here, we have sgsII and sgsIIplus (hardware the same) and i didn't choose it. the price is just to high for such old phone.

it's great, yes but it's outdated.. after reading many reviews i've come to the conclusion that the xperia t is much better for almost the same price.

also the xperia t section on xda looks really great and have seen some great roms and kernels.

so, to make a long story short.. i just ordered the sony xperia t and tomorrow it will be delivered.