yashsingh1/xdaforums huggingface dataset:
[XPERIA X8 Q&A, Help & Troubleshooting] Antique_Angel:
Hello there!

I know it may be such a noob question but, anyone (dev) here can tell how can I start to develop my own ROM or Kernel?

I already read eagleeyetom's post about how to make a ROM, but it is not the same as developing ROM. I also read somewhere on XDA that ROM is made by a "kitchen", so I doubt "Can I use kitchen to develop ROMS for our Xperia X8? Or it is just for HTC phones?"

I would love to start developing like xperiafan13, lrakkarl, NobodyAtAll, Doixanh, FrogyFuneral, etc...

Can someone here give me a highlights about all that?

Thanks in advice!
[XPERIA X8 Q&A, Help & Troubleshooting] milenkokg:
Ohh...l can't teach you about development,but l know that is big differents btw people who write all new stuff based on driver's (nAa) and people who just portred other Rom's and etc... but every new developer is welcome :-)
[XPERIA X8 Q&A, Help & Troubleshooting] Mayank77:
Following

I wish to follow this thread.

I too might become a developer soon.
[XPERIA X8 Q&A, Help & Troubleshooting] Antique_Angel:
I need to know it kitchen works on x8. I would develop a ROM for daily use with everything stable and great battery life. I don't believe we should develop ROM for HD gaming for our x8 since it has short battery life and more performative we make it, more battery it drains.
[XPERIA X8 Q&A, Help & Troubleshooting] gagagio:
Whats up guys noone is willing to help???
[Samsung Galaxy S (4G Model)] drdoombot:
I've flashed ValhallaFinal and Lightning Zap from scratch (factory wipe, cache wipe, dalvik cache wipe) at least 7 or 8 times, calibrating the battery using the Battery Calibration app from the Market and going through 4 full discharge/recharge cycles (as per instructions found on this forum) and my battery life, to put it bluntly, sucks!

For my most recent attempt, I followed these instructions from the maker of Lightning Zap 3.4.2:

Last night, after fully charging, I disconnected and left the phone on my desk. 9 hours later, it had dropped from 100% to 46%. Just a few minutes ago, it died on me, after 16 hours and almost no use (perhaps 10 minutes of GPS and 20 minutes using apps FOR THE ENTIRE DAY). I don't think it's the ROM, as ValhallaFinal may be the smoothest ROM I've tried for the SGS4G. Applying Lightning Zap has given me a slight increase in Quadrant scores (around 2000).

Overall, I'm kinda disappointed that my quad scores aren't higher and that my battery life is so short. How are people getting 30 and 40 hours from a single charge? Besides some podcasts and Gmail, I have no background syncing going on. Am I doing something wrong? Should I try Thunderbolt instead perhaps?

About three weeks back, I grabbed some files out of the Thunderbolt .zip file and added them to Lightning Zap 3.2.zip. So far, that one gave me the highest quad scores (2200-2300) and the best battery life (almost a full day with constant use, though not nearly as good as an old Vibrant with an ICS ROM I have laying around, which seems to go on for days and days, albeit with minor use).

Any ideas on what I can do here? The constant wiping and flashing is growing quite tiresome. I just want the longest battery life I can possibly get (preferably without the lag that I had before switching to ValhallaFinal).
[Samsung Galaxy S (4G Model)] Shortbus-Driver:
Buy more batteries
[Samsung Galaxy S (4G Model)] drdoombot:
I'd be willing to buy a replacement battery, if it was warranted (my battery is defective, etc.). Can't be messing around with extra batteries, though; too much stuff in my pockets as it is.

Is there an app or some way to check the health of my current battery?
[Samsung Galaxy S (4G Model)] Shortbus-Driver:
I doubt its your battery ive noticed too that using valhalla with or without lightning zip i get worse battery life than i did using the stock build.....but no big deal for me ive got 3 batteries and an externel charger that i had gotten for my vibrant.

But i can tell you that i got much smoother and snappier responce using the build.prop from valhalla black/cm7 hybrid and placed it in valhalla final.

But you may want to reflash valhalla final before doing so.....could end up with a negative using two positives....in otherwords no lightning zip
[Samsung Galaxy S (4G Model)] thomas.raines:
Download and install busybox installer form the market. Run it, and reboot... Some of the symlinks may be bad or missing...

If problem persist, run a logcat (can download from market as well) and PM me with it...
[Samsung Galaxy S (4G Model)] drdoombot:
Downloaded and installed busybox installer, ran the installation and rebooted. Didn't see much of a difference in battery life. Though I did use the phone more today than yesterday, only managed to get from 9am to 3pm before it hit the 5% mark.

I PM'ed you with the logcat file.
[Samsung Galaxy S (4G Model)] stephen_w:
Out of curiosity, what kind of battery life were you getting prior to flashing this ROM & tweak? I know you don't want to wipe/flash again, but I'm wondering what kind of battery life you would get if you flashed back to stock?
[Samsung Galaxy S (4G Model)] finch8423:
Here's the problem: Deep idle doesn't work. That's not to say that it won't ever work, but what should happen is that when you turn the screen off, the hardware for wifi, gps, and all the other things in your phone should shut off. Well, they don't. When you turn on GPS, WIFI, or what have you, they continue to run at full capacity even when the screen is off.

In general, to quote a kernel developer of this thread, battery sucks with all roms. Browsing will always use a lot of battery because, well, your phone is working it's ass off with the 4g/3g connection.
[Samsung Galaxy S (4G Model)] thomas.raines:
I can get about 3 days of battery life on what is weekend use for me. Connected to wifi, texting, and words with friends.

For regular use, I get about 2 days. Calling, internet browsing, texting my ass off, and light gaming solitaire, words, freecell, angry birds, etc).
[Samsung Galaxy S (4G Model)] stephen_w:
Maybe I have a crappy battery. I've never been able to get more than 16 hours out of mine with low calling, texting, and word feud all over wifi.
[Samsung Galaxy S (4G Model)] thomas.raines:
If you are using it with Ravers Black Vahalla, remove S14buildprop and S14buildpropmodremover... Push the original build.prop from the ROM to /system, and reflash Lightning Zap.

---------- Post added at 09:43 PM ---------- Previous post was at 09:40 PM ----------

With the soon to be released update of lightning zap, I am getting slightly better stats on Ravers Hybrid ROM, so far... I'm testing it now...
[Samsung Galaxy S (4G Model)] orion_134:
I know this is a month old..that's what I get for searching;) I'm not sure what that means, but I'm running VB and am also interested in better battery life. Can you elaborate on your instructions?
[Samsung Galaxy S (4G Model)] lumin30:
Your question is a few days old -

But helping somebody through PM who asked for help with their battery on VB and Adrenaline Shot - I mentioned to her that GPS and Sync are huge data/battery hogs. She checked and they both had been on. I told her to turn them off and only turn on as needed.

Today she replied -

"Just wanted to let you know that after turning off gps and sync I can notice a big chunk of an increase in battery life. I get awesome battery life, thank you so much for all of your aid :)"

Sometimes people who know forget to mention the obvious.

Hope it helps!
[Samsung Galaxy S (4G Model)] thomas.raines:
@lumin30

Good point man.

@orion_134

Is your battery life/performance below what you would expect or what others seem to be getting? If yes, try my Gremlin Remover

Or are you just trying to enhance your current battery life? If yes, try Lightning Zap v4.4 VB.

Links are in my signature...
[Samsung Galaxy S (4G Model)] Czajkus:
Lightning zap kills battery life on 2.3.6!

when i flashed the ROM i got 2-2.5 days of battery life

after i flashed the tweak i came home from school with 40-35 battery left
[Samsung Galaxy S (4G Model)] thomas.raines:
On the contrary. Don't bash the tweaks because your phone is 1 of VERY FEW, and the others that have experienced poor battery life with ANY tweaks/ROM, I have helped fixed time nd time again!

I and several others are using 2.3.6 and I get about 42 hours on one charge. You probably have gremlins. Use the 1 Click Gremlin Remover (link in my signature).
[Samsung Galaxy S (4G Model)] StonedYoda:
I used the remover twice, but still having the same battery drain...nothing changes it. I've tried UV with Tegrak Ultimate and every different tweak and ROM. In just gonna get a new battery at this point.

Ok I just saw the previous suggestion of turning off sync and GPS. I always have GPS off but I'm gonna try with sync off also for a few days to see if that makes a difference. Thanks
[Xperia Play General] Cat_On_Droid:
When it asks for background data after I tap market, I press yes and it always force closes ;'( I'm on. 42
[Xperia Play General] ridder215215:
Perhaps this helps

I haven't heard of that issue, but perhaps this can help you: http://localtech.gidblog.com/2011/07/20/android-market-market-needs-background-data-to-be-enabled/
[Eee Pad Transformer General] TheUndertaker21:
ive tried everything so far

nothing work

nacho and the firmware downgrade thing

please help me

thank you
[Eee Pad Transformer General] baseballfanz:
What is it doing or not doing when you try the different method?

NachoRoot?

Downgrade to use RazorClaw?
[Eee Pad Transformer General] TheUndertaker21:
i used both

for nacho i cant get adb id to set 0

and for downgrade i keep getting the exclamation point

omg this sucks
[Eee Pad Transformer General] kf2m:
It took me a couple of tries with nacho before it went to 0/Root. Note that .21 is not downgradable IIRC. Try redownloading nachoroot.bin. You may have had a bad download.
[Eee Pad Transformer General] TheUndertaker21:
thanks im gonna re do everything again

i hope it works

EDIT: IT WORKED thank you dude

it was corrupted

awesome
[Eee Pad Transformer General] Danzano:
Welcome to the club undertaker if you need good copys of a couple emulators or other bits give me a pm i know what its like trying to setup the tf101 first time and get all your favorite games etc :D

Also what ROM are you gonna use? All the roms are great but atm ive found krakd the fastest and best to tweak up :)

Sent from my tf running krakd warped an twisted 1544mhz Blades kernel
[Eee Pad Transformer General] TheUndertaker21:
thank you. and im using revolver right now. i heard good thing about it. ima gonna try karkd

and yeah i wanna some cool tweaks emulators as well as games.

im a college students so i need to entertainment during my free time :D
[Eee Pad Transformer General] kf2m:
You're welcome.
[Eee Pad Transformer General] Danzano:
Sweet as i have the latest n64oid psx4droid ataroid gensoid etc etc

Im a uni student and sit on a train 3 hours a day so i know the feeling :D

Sent from my tf running krakd warped an twisted 1544mhz Blades kernel
[Eee Pad Transformer General] Ep3n3wp:
Where can I get PS emulator? just got transformer other day and rooted with viperMOD but no recovery or ROM yet
[Eee Pad Transformer General] Danzano:
If you send me your gmail through pm i can send you psx4droid ver 3 beta which is the only version on our tf's that is free and works also you should be able to install it straight from the gmail app on your tf :D

If you dont like that one you could think about investing some cash into fpse from the market the opengl plugin is comming alony nicely but still needs some work so atm i use both :)

Sent from my tf running krakd warped an twisted 1544mhz Blades kernel
[Eee Pad Transformer General] Seg2012:
I had the same problem as th OP. I couldn't for the life of me get Nacho to set correct id values. From what I have read, might be something to do with mine being a B40.

Anyway I was running .21 firmware and thought I would try the BrkToolkit, and low and behold, my TF is rooted on .21.

Seg
[HTC Sensation] Csapty_htc:
So.. The other day I rooted my htc sensation perfectly, and gained super user access, S-off and all that stuff to root.

So I flashed a MIUI rom onto the phone which worked perfectly.

Today I tried to flash the Virtuos Quattro ROM onto my phone and it didn't work. So I cleared the cache, user data, and all that, but every time I tried to flash the rom it came up with an error.

(At this point when I turned the phone on , it when in a boot loop..l unless I went into recovery mode.) so I tried to restore the MiUI ROM and it wouldn't work anymore..

So I formatted the system and still no luck. Formatted the SD card and no luck.

However, after doing all of that, I lost the MIUi ROM, have no way of getting to a home screen, and I don't know how to get back either to my stock rom or to the MIUI rom.

It still says I'm S-off.. But I have no clue how to get back to either my stock rom ( because I have no idea where to find it) which is what I want to do again

Have I deleted the stock rom?

Is there a way to get back to the stock rom in this case? Or what should I do?!?

In desperate need of help guys!!

Cheers
[HTC Sensation] elphiz19:
elphiz19

Download a Rom to your computer the go to recovery and mount sdcard plug the phone to your computer and put the Rom to your phone from your computer if this doesn't work use another phone and put your sdcard in that phone and put the Rom from your computer to your sdcard
[HTC Sensation] Pard0ned:
If you've formatted the sd card, without making a backup of the stock nandroid on the computer, you've lost that.

Search here for stock sensation ROMs for your carrier (pretty much what you had before you started flashing ROMs) and, if you do want to go back to stock, follow the instructions to flash it. Then follow step 5 here *CAREFULLY* to get s-on and stuff again (if you're wanting to go that far).

I'd personally recommend trying to flash ARHD or something, a ROM that has been flashed by a lot of people - trouble free, again by following the instructions carefully. It could maybe just be something as simple as you got a bad download (always check md5 # to be on the safe side - and to ensure that stuff like this doesn't happen.)

Once you've rooted there's not really much cause for going back to stock, as most custom ROMs are edited to perfection for speed and efficiency.
[HTC Sensation] sigmaphi:
just ****ed up my galaxy not and ur info save me a lot of hassle lool :good:
[HTC Sensation] rodcarlos21:
heeeeeeeeeeelllllp !

. i rooted my galaxy pocket and i wanted to flash a custom rom(repencisv3.5). i forgot to have a backup of my stock rom and i put the repencis zip in my external sd card, i wiped my cache,data and everything and i tried to install repencis , but it cant open the external sd card, now i dont have any rom to flash , even the stock rom. it boots , but after the samsung logo. it displays "tap here to get started" and just hangs up . is there anything i could do to access my /sdcard to put a custom rom there and flash again ? please help me ...!!!!!! message me or rreply on this .
[HTC Sensation] dany xe:
Did u notice that ur on a htc sensation thread? People that can help u are on galaxy pocket threads, anw u have to put ur sd card in another phone to copy the rom on it, then insert it in ur phone open bootloader, go to recovery (i think that in samsung devices u open ur recovery by chosing install update from sd card in bootloader and chose the recovery zip file), when u get in recovery, format data and cache, wipe dalvik cache, then chose install zip from sd card and chose ur rom
[HTC Sensation] rzr86:
as far as i know samsung devices doesn't have bootloader

they are doing their stuff with odin i think except recovery
[HTC Sensation] dany xe:
Volume up + power + the main button (the one under screen in center)
[HTC Sensation] rodcarlos21:
this :/

i used CWM as a recovery . it cant access the external sdcard folder. im thinking of using my pc to transfer files to the internal sdcard. but how ?? ijust stuck upp on the intro screen :// is there anything i could do to access my internal sdcard using my pc ? so that i can put a custom rom there and flash it .
[HTC Sensation] princepankajyaduvanshi:
Once i flash rom in my lava iris x 8 ...

After few days i flash the original rom of lava...

And now when i click volume and power buttons ..there are no options comes ...and only switch on my phone...

There are no options for install roms...

Help me please
[Samsung Galaxy W I8150] s0unds:
I'll start this thread by posting the IDA .idb file and a linux shell script that dumps out the stock images.

To use:

adb shell

dd if=/dev/block/mmcblk0p5 of=/mnt/sdcard/something

exit

adb pull /mnt/sdcard/something

run the script with: ./get_images.sh something

Anyone want to make some new custom themed ones? :D

It was only 1 day's work to disassemble the partition. (Example, Exhibit II disassembled here) If you have other dumps made with dd you want me to take a look at, I might be able to help you.
[Samsung Galaxy W I8150] s0unds:
For example, here's a sample of what the original image looked like, and what the new one looks like when my phone boots.
[Samsung Galaxy W I8150] arco68:
Huh, I did this the first day I got the phone over 2 months ago. It's no hocus pocus. :)
[Samsung Galaxy W I8150] DarthJonathan:
soo the boot logo cant be change arcoo???
[Samsung Galaxy W I8150] arco68:
It can be changed yes.
[Samsung Galaxy W I8150] DarthJonathan:
what are the disadvantages arco? and how are youuu legend? xD
[Samsung Galaxy W I8150] s0unds:
Please post your .idb file so I can take a look.
[Samsung Galaxy W I8150] arco68:
Oops, sorry. I thought you were talking about the boot partition. My bad. :)
[Samsung Galaxy W I8150] s0unds:
No worries.

I like reading any & all .idb's; I'll share any I can get my hands on or generate.
[Samsung Galaxy W I8150] s0unds:
After completing my analysis, the only way to get added functions from odin mode (on this phone) would be to exploit it.

It stores the URB on the stack - so sending shellcode should be possible. If you're interested, please reply with your favorite IRC channel. If your name is Mr. Jongshik, you're the author of the code - mind posting the source? :)

What added functions? Things like diagnostic & debugging tools. The current stuff is very limited.
[Samsung Galaxy W I8150] sigprof:
More EMMCBOOT versions

I have a different EMMCBOOT version on my phone — images are at some different offsets.

I have attached a file with dumps of partitions 5 and 21 (p21 looks like a boot backup, seems to be called /boot/appsbl_bkp in some places). The backup version in p21 looks like yours (at least image offsets are the same); also the md5sum of the first 1554432 bytes of it is 28ebdcd5ba941c1b9b9cd9ad6f6929f5, and exactly this value is in the table at the start of partition 1 — probably this is the version from factory, and the version which is now in p5 came with FOTA updates (initial version was I8150XXKJ1, updated with FOTA first to I8150XXKJ6, then to I8150XXLA2).
[LG Thrill 4G] hegemytouch:
I went on amazon and found an extended battery for the lg thrill...its made by Hyperion and its a 3500 mah. I love this battery...I've had it on for 12 hours and have 63% left and that was using the phone a lot. I advise everyone who has a thrill to pick one up its only 17.99 and it cone with a back cover. The back cover isn't cheesy its the same rubbery material as the stock back cover. Only problem is it does add decent bulk to the phone but its well worth it....Idk about you guys but I'm tired of charging my phone 3 times a day.
[LG Thrill 4G] Markyzz:
I think this topic is already covered in the accessories forum.
[LG Thrill 4G] mystagog_inc:
Can you provide a link to the one you got please?
[LG Thrill 4G] hegemytouch:
http://www.amazon.com/gp/aw/d/B005PZNF0W/ref=redir_mdp_mobile
[LG Thrill 4G] Sleeping Giant:
Mind posting some pictures of it? I'd like to see how much thicker it makes it.
[LG Thrill 4G] xstokerx:
http://www.ebay.co.uk/itm/GOLD-2430...645681069&po=&ps=63&clkid=6330021199055202892

do you think this battery would work in the thrill
[LG Thrill 4G] hegemytouch:
Yes that battery would work
[LG Thrill 4G] faresr:
definately gonna pick one up
[LG Thrill 4G] lg_haters_make_me_lol:
Hey hegemytouch,

How's that battery holding up? I'm thinking about getting one, but I've heard stories that they only have the long charge for a little while and quickly lose capacity over a few charges (probably bc they've been sitting in a warehouse for a long time and just lost their capacity from that). I want to get an idea of how the Hyperion battery holds up. Thanks for the update.
[LG Thrill 4G] hegemytouch:
The battery was pretty decent. The first charge you have to charge it for 12 hours...that lasted forever LOL..the battery life did.drop a little couple of charges in but still was worth it. Lasted all day with heavy use.

Galaxy Note
[LG Thrill 4G] Att.Fan1982:
http://www.ebay.com/itm/3500mAh-Ext...0-Optimus-3D-P925-THRILL-4G-131-/270941443272

Just ordered this battery and will let you all know how it stacks up to the stock battery when I receive it.
[LG Thrill 4G] gniblack:
I ordered the 3500 mAh battery recently. I cannot wait until I receive it. My biggest gripe about this phone has been its battery life, but now that won't be an issue. Thanks for the excellent post.

Now I made this order fairly late and overlooked the fact that the battery is thicker than stock. Does the new battery come with a new back plate, or will I have to order that separately? Also are there some good protective cases for this phone available when using the thicker battery? I know my current one will no longer suffice.
[LG Thrill 4G] Markyzz:
Most of them come with the backplate.

I haven't found any aftermarket cases that fit with the extended battery. If you do let us know!

Sent from my CM7 Thrill
[LG Thrill 4G] eg94:
I have the 3500 mah good long lasting battery but it adds too much bulk, it's a brick

I went back to stock battery
[LG Thrill 4G] gniblack:
It certainly does turn it into a brick, but for me the additional battery life makes it all worth it. I emailed Hyperion asking if there is a case for it. I am awaiting a response.
[LG Thrill 4G] WattB006:
I have thought about getting an extended battery but like other people have said I dont think I would how bulky it makes it. If someone does make a case for it I will definitely try it. I get decent battery life right now. I am a heavy user of my phone and it will last me all day and night with no issues.
[LG Thrill 4G] Att.Fan1982:
I have received my 3500mAh battery with a case to fit around the battery and I must say that it's NOT as bulky as people make it seem to be.
[LG Thrill 4G] gniblack:
Do you mean the backplate to the phone or a protective case for the phone? If you found a protective case for the phone when using this battery please send me a link. I really need one since I have had my drops over the years with my phones, and I don't want to crack the screen. There's too much work involved in replacing them.
[HTC Amaze 4G] riprowan:
Hi all, I'm having a problem with the gallery. I use the stock gallery and JustPictures. I put a bunch of photos on the phone in the correct location on the sd card. However, only new pictures taken with the phone display in either gallery. I can browse the directory and see both new and copied photos so I know all the pictures are in the right place.

Have tried rebooting as well as clearing the app data for both apps.

Help!
[LG Optimus Black] skapez:
As is written on Optimus 3d P920 developement section, they found a new way to make KDZ work again

http://xdaforums.com/showthread.php?t=1473781

I've tested this on my otpimus black and it worked.

Now I have the fw 20n, while before i had the 20b.

Hope this could be helpful for someone
[LG Optimus Black] achyut:
thanks :)...its good 2 peek into other forums :)