yashsingh1/xdaforums huggingface dataset:
[AT&T Samsung Galaxy S II SGH-I777] Starfrog6:
[Q] Can boot into a "black screen" recovery and get ADB feedback but that is it.

Strange issue I have here, well it is to me at least, my fathers SGH-I777 the AT&t model boots fine and works when booted but the play store gives me the "no connection" on both wifi and hspa+ and there are a few apps that do not work and cannot be updated for android 4.3 because of the play store. All that is just a day on android and would be fixable if recovery worked. It had or possibly still has clockworkmod recovery installed on it, no idea of the version unfortunately. The first thing that came to my mind was to just update it, well, it cannot be that easy as the latest version of ROM manager does not work, it crashes on startup. So I decided to try ADB and I will get this back if it is in its black screen version of recovery mode

C:\1>adb devices
List of devices attached
0123456789ABCDEF recovery

C:\1>

and this if it is booted into android

C:\1>adb devices
List of devices attached
0123456789ABCDEF device

C:\1>

Kind of a side note but also the main issue, when I try to "reboot to recovery" or hold both volume rockers and the power button till to logo appears all I get is a black screen and if it is dark enough in the room you can see that the backlight is on. So I am assuming a corrupted file somewhere, I just need to get somewhere and so far after 3 hours of searching for a solution today I have not. I don't know where to splice this in so i'll do it here; I am pretty sure this is a result of my father having Cyanogenmod updater update from 10.1 to 10.2 without completely re flashing boot and installing from a "factory reset" device then recovering the data.

List of some other things I have tried:

installing the latest apk of the play store

installing the latest apk of ROM manager

not much else that I can think of at this time, but ask and I will either try it or tell you if I have and try again anyways. Not too urgent but thank you for being here xda :).
[AT&T Samsung Galaxy S II SGH-I777] Starfrog6:
I just read this "http://xdaforums.com/showthread.php?t=1824419" and it looks like rom manager is not a good idea, still need to find a way to install the recovery though and I have no idea how to get fastboot to work without it.
[AT&T Samsung Galaxy S II SGH-I777] 4-2ndtwin:
Maybe this post will help...Post #4000 http://xdaforums.com/showpost.php?p=44984062&postcount=4000
[AT&T Samsung Galaxy S II SGH-I777] Teknodad1974:
Put in normal download mode by pulling battery and hold the volume down button as you plug the micro usb in. Reflash to stock jelly bean 4.1.2 using Odin and root with framaroot 1.42 and use aragon exploit and go from there....
[AT&T Samsung Galaxy S II SGH-I777] Starfrog6:
Alright ill try that in a few minutes, just left the house.
[AT&T Samsung Galaxy S II SGH-I777] creepyncrawly:
Just a couple of points, which may be helpful if you are not very familiar with the SGH-I777. Recovery is built into the kernel, not in a separate partition of it's own, so you can't just install a recovery, you must install a kernel containing a recovery.

Rom manager is said to be OK when you have CM on the phone, but in your case it would probably be best to avoid it until the problem is resolved.

The solution 4-2ndtwin posted sounds correct to me. If it were my phone, I'd try that first before flashing back to stock.
[AT&T Samsung Galaxy S II SGH-I777] Starfrog6:
Sorry for being so late but this worked and allowed me to boot into recovery. Thank you so much!
[Nexus 4 Q&A, Help & Troubleshooting] VSTOLL:
Hello guys,

I'm new to the Android World, I was user of a Xperia X8 (that I just used for SMS and calls) and one iPod Touch 4. Both were very slow and I just decided to change to only one device, and I find out that the N4 was the best option for me, due to it's cost and performance.

I'm really loving this device, its smooth, fast, beautiful design, everything you guys already now :P But, something is annoying me... I watch a lot of movies and videos on my devices, and I noticed that in my Nexus 4 I get some frame drops while watching it, most frequently in HD movies, but also happens in SD videos. I've noticied this on YouTube (that recently had an update, I'm not really sure if that's the problem) and in MX Player (if the decoder is setted to S/W the frame drops is almost 0, and in H/W is the same thing as in YouTube).

I don't believe that this should happen :( Anyone knows what can I do to fix that? The device is running stock kernel and rom in the 4.2.2 version, just like it's out of the box, and I didn't did any reset. And, I saw that 4.3 is faster, but, I can't update to it, when I check for updates under the setting menu, it says that it's already up to date, how can I do to update it?

Thanks guys!
[Galaxy Tab 2 Q&A, Help & Troubleshooting] Xintorrim:
Sorry if theres already a similar topic but i'm mad that we have 811mb of RAM but 710mb are almost always being used. Just after rebooting the device some 40-50 apps/processes are already running and they start back even after clicking to clean memory.. What to do about that?
[Galaxy Tab 2 Q&A, Help & Troubleshooting] Droidlover123:
Just download Rom toolbox

And uninstall unwanted bloatwares or freeze unwanted services!
[Galaxy Tab 2 Q&A, Help & Troubleshooting] dynospectrum:
Use an AOSP ROM.
[Galaxy Tab 2 Q&A, Help & Troubleshooting] impliu:
the stock firmware have a lot of preinstall apps,you can root it and delete them, or just flash a clear CM or ASOP firmware
[Galaxy S I9000 Q&A, Help & Troubleshooting] Tijana13:
Hi, I have SGS I9000 for over 2 years now, and today, I unlocked it and it just started to reboot, by itself. As far as the start goes is moment when it needs to switch between "starting aplicatios" and home screen. Then he goes again into starting android mode (it doesn't turn off completly, just android reeboting). It worked fine before seconds before.

I have MIUI android V4 and I've tried everything, wiping, restoring, but main problem is that I have some unsynced contacts and sms that I need but I can't access them. Can you help me please? (only way I can access internal storage is boot/mount/mount USB, because of the restarting thing)
[Galaxy S I9000 Q&A, Help & Troubleshooting] SuicideFlasher:
something must be segfaulting everytime it comes to load the UI, what does adb logcat say?
[Galaxy S I9000 Q&A, Help & Troubleshooting] Tijana13:
Could you please tell me how to check adb logcat? I don't know much about phones but I'm willing to learn :confused:
[Galaxy S I9000 Q&A, Help & Troubleshooting] SuicideFlasher:
unzip the adb package below, open a command prompt in that directory and type adb.exe logcat

you need Android Debug Bridge drivers installed, windows should do the job for you, unless you're on crappy vista

if it gets stuck on - waiting for device - you don't have those drivers
[Galaxy S I9000 Q&A, Help & Troubleshooting] Tijana13:
Tank you SuicideFlasher on your replies but I managed everything by my self :victory: I flashed my phone with Odin and got semaphore kernel, but it got stuck in a boor loop again. I then copied restore folder from my computer to internal storage (that i previously saved there), reinstalled CWM with Odin and restored the system that worked (I backup ed all data) and now I completely formated my phone to start over. Congrats if any of this makes any sence but it worked for me :good:
[Galaxy S I9000 Q&A, Help & Troubleshooting] SuicideFlasher:
it's good to see beginners trying to fix stuff by themselves :good: you have good probabilites of becoming a dev one day imo

anyway, by using logcat you would just have watched the phone freak out in that bootloop while seeing in detail whatever the log could tell you, but i think that log would have frightened the hell out of you if your knowledge is really that minimal atm :rolleyes:
[LG Optimus 4X HD] NameOfTheUser:
The batterylife of my p880 is the worst ive ever seen.

Do you guys know some ways to extremely increase the batterylife?

Maybe a new kernel or something in the settings? Or an app?

Im running cm10.1 with the latest iodak kernel.
[LG Optimus 4X HD] SuicideFlasher:
set the powersave policy to max/aggressive/active, use smartassV2, conservative, lagfree or lazy as CPU governor, try using greenify, delete any apps you don't need and do NOT overclock

EDIT: also try flashing a kernel with battery life tweaks
[LG Optimus 4X HD] kristhox:
Well, I use an app called battery saver (root). You'll find it in Play Store. It's for root users, so you need to be rooted.

What it does: Battery Saver (root) will change the system ROM configuration for better battery life. It won't cut off WiFi, mobile data etc while the phone is in sleep like other apps does.

Try it for some days, it should help you like it did for me :)
[LG Optimus 4X HD] theofficialpimp:
Undervolt 70 on all and under clock to 1300mhz,, greenify all unimportant apps, disable some stock apps. Set brightness 35% auto, Get you atleast 4.2 hours on screen time.
[LG Optimus 4X HD] noppoer2:
Underclock to 1000mhz no performance lose and better battery life, and this is maby wierd set your minum frequency on 200mhz 200mhz uses less power then 100mhz. If you dont believe me search on the internet :)

Verstuurd vanaf mijn quadcore monster genaamd p880 (LG Optimus 4X HD)
[LG Optimus 4X HD] Allex42HD:
if you want to increase your battery life you should use a car battery :)) but that is insane

also nvidia tegra 3 use much energy for the 4 cores so if you don't find a app to use only 1-2(1 on menu, 2 on apps or light games) core and only 4 on heavy games you are lost even if you use a extended battery, because op4x use all 4 cores all the time :( soo that's sad
[LG Optimus 4X HD] chasepoes:
I've searched the Interwebz and could not find any support for your claim regarding the 200MHz min. core frequency being more energy-efficient then 100MHz. Can you point me in the right direction?
[LG Optimus 4X HD] Lim Wee Huat:
Freeze GAPPs, services and framework... Run Android without Google.:)
[LG Optimus 4X HD] postacik:
Which application do you suggest to underclock?
[LG Optimus 4X HD] tornado92:
ExTweaks
[LG Optimus 4X HD] SuicideFlasher:
Voltage control if you prefer very simple apps

Sent from my liquid glowing bomb shell
[LG Optimus 4X HD] noppoer2:
Trickstermod :)

Edit: here is the info for 200mhz

Q. "I'm going to set scaling min freq as 100 mhz because my kernel supports it. Hope there's nothing wrong in doing that."

A. Wait! You may want to stay away from using 100mhz during screen-off or screen-on states for three reasons 1) It seems 100 mhz uses more power than 200 mhz. According to tests, 100 mhz accounted to 1 W / GHz and 200 mhz to 0.7 W / GHz, when both the cores were online. 2) 200 mhz can finish same task faster compared 100 mhz and thus hit deep idle soon. 3) 200 mhz is the 'sweet spot' of frequency in SGS II. ie, the frequency used in the calculations based on the optimal energy to run (Ex: In Milestone it's 550 MHz). So , 'energetically efficient' frequency for our CPU is 200 mhz.

Edit 2: for a good govenor use conservative and use this tweaks:

Up_thresold 95

Sampeling_rate 120000

Sampeling_down factor 1

Down_treshold 40

Freq_step 10

(I edited this whit trickster mod)

Verstuurd vanaf mijn quadcore monster genaamd p880 (LG Optimus 4X HD)
[LG Optimus 4X HD] leris2:
I believe this occurs on dual core cpus.

Should work on quad too though.

Anyone tested it?
[LG Optimus 4X HD] noppoer2:
Playstore link plz i cant find it

Verstuurd vanaf mijn quadcore monster genaamd p880 (LG Optimus 4X HD)
[LG Optimus 4X HD] bilbo75:
Friend,I read SGS II !!! Samsung CPU not equal to LG-P880 !!!! Dual core versus quad core and different architecture!!

You are comparing apple with oranges.
[LG Optimus 4X HD] noppoer2:
Have you tried it? By me iy works and the first 2 reasons are true and that whit the conservative govenors works also and i am 99% surr that you dont test it, first test it and then cry :)

Verstuurd vanaf mijn quadcore monster genaamd p880 (LG Optimus 4X HD)
[LG Optimus 4X HD] kristhox:
I'm still a new member on XDA and can't post links.

But just search Google and you should find it.
[LG Optimus 4X HD] NameOfTheUser:
I found this app called antutu cpu master. You can set the min cpu frequency and the mac cpu frequency.

But what is the best min and max cpu frequency to increase the batterylife and have a good performance too?
[LG Optimus 4X HD] ectoplasma22:
I would say 51 MHz as min and 1300 as max
[LG Optimus 4X HD] SuicideFlasher:
51 mhz as min frequency? isn't that too low for the phone itself to function?
[LG Optimus G Pro] acejoker25000:
We can also flash international roms like feiyu we just have to flash our baseband right after. I tested feiyu v10 and everything worked. Just their super user app and a couple others didn't translate. Other then that everything works including data. Just make a backup before doing so
[LG Optimus G Pro] hyelton:
Yea I know we can flash international roms, But This is not modified or touched in anyway. This is the EXACT flash you would use to flash the international versions of the phone. These are factory images/Roms. These are not flashed via recovery these are flashed in a way like LGFlashTool. Also If you dont root this you can most likely get OTA updates for it as well! And you don`t have to be rooted or flash recovery for this.

Flashing this is what LG Made.

Also When Flashing the Telcel image you dont need the baseband it works as it.,
[LG Optimus G Pro] acejoker25000:
Interesting. And data works fine?
[LG Optimus G Pro] hyelton:
As long as you put in the APN to your carrier.

Upload is Done and Guide is Ready!

Post Results Please!
[LG Optimus G Pro] riz157:
This is very useful> tried running uptestex but get error message LGMobile.DLL is missing from your computer.
[LG Optimus G Pro] hyelton:
Did you do this step?

2) Download LG mobile support tool and Install it. (It will open up when its done just CLOSE IT OFF)

http://csmg.lgmobile.com:9002/client...2CAppSetup.exe
[LG Optimus G Pro] riz157:
Thanks now its working. Glad someone knows what they are doing.

Just before I click upgrade this should work for F240L?

Taking its time..12% after 4mims.
[LG Optimus G Pro] hyelton:
Depends on which one you used I`m not sure never tested it on any other than the E980.

The list of what I have is

http://storagecow.eu/index.php?dir=Xda/LG+Optimus+G+Pro/Stock/
[LG Optimus G Pro] jimi_pooh:
Dude this is amazing. Mad crazy roms are coming now. Thanks
[LG Optimus G Pro] hyelton:
Your Welcome:)

I guess you should think LG for being able to easily get these haha.
[LG Optimus G Pro] riz157:
thanks man very helpful still same result though can't upgrade, stuck in download mode.....nothing seems to work.

Cant get into recovery mode nor boot up...help

This is the message I get when using your method

01:38:41 : Step : TYPE_WPARAM_UPGRADE_ERROR

01:38:41 : CleanModelDll() : Free Model.dll

01:38:41 : _DetachDLL Call

01:38:46 : _DetachDLL Call End

01:38:46 : Page_Error ºÎºÐÀÔ´Ï´Ù

01:38:46 : ¿©±â´Â Retry ºÎºÐÀÔ´Ï´Ù

01:38:46 : Page_Error ºÎºÐÀÔ´Ï´Ù

01:38:46 : ¿©±â´Â Retry ºÎºÐÀÔ´Ï´Ù
[LG Optimus G Pro] Nukpana:
how and what to back up the EFS ?

Thanks
[LG Optimus G Pro] jimi_pooh:
The parameters you posted in the instructions, are those default values to be used for any .kdz file?
[LG Optimus G Pro] niksan29:
this firmware has the Russian language? and features: smart on and dual camera?
[LG Optimus G Pro] hwooei:
Can be use to flash LG e98810a Indonesia stock firmware kdz? Anyone try?
[LG Optimus G Pro] hyelton:
Yes somewhat, They CAN be used as I guide to flash the stock firmware to any of the Optimus G Pro Models. I`m uploading most of the stock firmwares :)

Idk about the Russian language Mexico is a Spanish Speaking Country lol. Some of the roms might have it anyway though.

Yes it can be used with the E98810a Indonesia KDZ
[LG Optimus G Pro] hwooei:
try and working for e98810a indonesia :laugh:

thanks my phone back to stock..

this thread should be sticky..

:good:
[LG Optimus G Pro] niksan29:
I thought once the firmware International it has all European languages ;)
[LG Optimus G Pro] hyelton:
Keep a watch here in about 10 hours. Its 3AM here haha, I`ll post a screen shot of the launges I get, Its certainly ALOT MORE! haha. AT&T E980 only has 4. English, Spanish, French, and Looks to be Korean
[LG Optimus G Pro] hyelton:
RETURN TO STOCK AT&T Version ONLY!

Download

1. LGFlashTools v1.5 - Download

2. Drivers - Download

3. Download Both Stock Image File and DLL (Both Files) - Download

Credit to [MENTION=1436971]madmack[/MENTION] for making most of this Guide for the G Pro Which also works on our G2

Install

1. Install the LG drivers downloaded above.

2. Install LGFlashTools v1.5 (but don't run it)

3. Extract the TOT file from the ZIP

Drivers initialization

1. Put the phone into download mode. (Turn off device, keep pressing volume down while plugging in the micro usb cable. If this doesn't work, try holding both volume keys instead)

2. Let the phone initialize and install the drivers. Once done, in Device manager, you should see the LG phone listed under COM ports (something along these lines).

3. Find that LG entry in Device Manager, click on Properties, Advanced and then change the COM port to COM41 and close/save.

4. Unplug your phone! Important step.

LGFlashTools

To get this tool to work, you'll need to do a few tricks.

1. Set the computer's date to some time in July 2012 or before.

2. Disconnect the internet

3. Find a serial number or register key from somewhere on the web (a google search for lgflashtools serial will yield some results). Can't help you here and please don't share any keys in this thread or get us in trouble.

4. Execute the LGFlashTools. It should ask you for a key, put it in. Now you should see a dialog where you can load the DLL file and the TOT files that you extracted earlier. Put them both in here. Click ok

Flashing

5. There is a yellow arrow on the top left. Click on it to initialize the process. Once done, it should say "ready/finished" or whatever.

6. Put the phone in download mode again, and plug it into the USB port. LG FLash Tools should start flashing it automatically. When it's done, it'll automatically reboot into your stock AT&T rom and all of your data and internal sdcard files are gone.
[LG Optimus G Pro] marv_in_lbc:
I just went back to the Panamanian version. My LTE doesn't stick using the above method. Maybe a build.prop tweak?

found: ro.telephony.default_network=10. Settings>Tethering&Networks>Moblile Networks>Network Mode> set to GSM/WCDMA/LTE auto - it will stick then.
[LG Optimus G Pro] KlausWillSeeYouNow:
Really? Are you sure? I experimented for days and mine is STILL on... Sure you followed the steps correctly? :D
[LG Optimus G Pro] marv_in_lbc:
Yeah, I followed it correctly. But, I went the root route (got lots of root apps didn't want to go to waste)

Anyway, found the ro.telephony.default_network in build.prop... default was 9 and changing to 10 solved it.
[LG Optimus G Pro] KlausWillSeeYouNow:
Also, don't be too hasty to lift up your finger while you select the preferred network mode in the Testing menu while in Safe Mode. Not sure if it matters. I hate borderline-homeopathic cures for issues like this, but I genuinely believe this is a working, proven solution as I'm on LTE and have been without fail since doing this. Good luck.
[LG Optimus G Pro] marv_in_lbc:
Thanks for your input, but root got if for me. The Panamanian firmware is the absolute best.
[LG Optimus G Pro] KlausWillSeeYouNow:
Kudos to you, good sir or madam! Now, this goes without saying: you are rooted, no? See, I'm not... :p

I probably should, but for some reason I like to wait a while before rooting once I get a phone.
[LG Optimus G Pro] marv_in_lbc:
Lol! It's sir... (marv_in_lbc...)

I usually wait too for root, but when I got the phone, it was already rooted. I traded my [then] HTC One for the phone plus $100... from the other guy! So, I got the phone (duh), the Quick Cover, all accessories and $100. Excellent trade, Lol!

But, I use TitaniumBackup and Root Call Block Pro, so root was a necessity.
[LG Optimus G Pro] olorin:
Can I flash e989 kdz rom on att e980?
[LG Optimus G Pro] landeiro:
For me this tutorial dont work. I have E989 undebrand.When I click this botton Click "Normal web upgrade test" (bottom right hand side) FC always or dont work, the program shutdown.

Another doubt in Korean or Brazilian Language e selection? My phone is brazilian

I have another method but I have download all rom from LG, many time to install stock is boring.
[LG Optimus G Pro] hyelton:
Try another computer thats not windows 8
[LG Optimus G Pro] landeiro:
My PC is Windows 7
[LG Optimus G Pro] hyelton:
Try and reinstall everything and make sure your using the SAME flashtool thats in the thread. its working for everyone 95% of the time.
[LG Optimus G Pro] aygriffith:
Had the same problem, the solution is don't click the "Normal Web Upgrade Test" button. The instructions are sort of misleading, click the start upgrade button next to the upgrade test button. It won't FC.
[LG Optimus G Pro] techdeisel:
As it states I need help I cant reroot or install any apps bcuz the internal memory card has vanished I was rooted running pac rom then was supposed to be doing a warranty claim but that fell threw and now I just really need to get my internal memory back so I can root any help is greatly appreciated
[LG Optimus G Pro] wibul_10:
my phone is f240s, I follow your instruction strictly...and I struck that this time my battery is fully charged...any advice....

---------- Post added at 12:11 AM ---------- Previous post was at 12:10 AM ----------

my phone is f240s, I follow your instruction strictly...and I struck that this time my battery is fully charged...any advice....
[LG Optimus G Pro] bailey37821:
fully charged now you mean? was it fully charged the 1ST TIME you tried flashing.
[LG Optimus G Pro] wibul_10:
now, it can flash now ....fully charged and have to restart computer

thank..j

---------- Post added at 12:21 AM ---------- Previous post was at 12:18 AM ----------

now, it can flash now ....fully charged and have to restart computer

thank..j
[LG Optimus G Pro] here.david:
what I had to do also

Yep, that was happening to me, try this:

http://xdaforums.com/showpost.php?p=42012157&postcount=1

Good luck...
[LG Optimus G Pro] Shira_nai:
I am using E988 indonesian and this works perfectly. Thanks! :D