yashsingh1/xdaforums huggingface dataset:
[Galaxy S Plus I9001 Android Development] jojogangsta:
AW: [REQ][DEV]Making dual boot for our phone

I dont know how it works but maybe somebody will look how this safestrap thing from droid razr works. I flashed it on the razr of my friens and ita really easy to use. I think it creates partitions on internal sd card and boots directly from the internal sdcard :)

Gesendet von meinem GT-I9001 mit Tapatalk 2
[Galaxy S Plus I9001 Android Development] alireza7991:
Re: [REQ][DEV]Making dual boot for our phone

Hi friend ,

I know what do you mean !

You mean a kernel which boot from /system or /sdcard/system and another kernel on sdcard , but this can't be possible ! Kernel just can be loaded by boot loader ! A kernel can't load another kernel , at the moment its just possible to make a modified kernel which boots system from sdcard or block15 , so we had to install two similar base ROMs to have dual boot between them !

But I have an idea , We may can make a kernel on block13 where recovery kernel is there , bootloader can load it but after that we can't have any recovery mod !
[Galaxy S Plus I9001 Android Development] Jonboy2011:
AW: [REQ][DEV]Making dual boot for our phone

ok so you want 2 kernel : 1. A normal kernel ( nexus 9.0 as example) which boot the "normal" system and 2. a modified kernel that loads the system from the second partition of SD card ? it sounds logical but I'm not a dev so I cannot say if it would work because I don't know if the kernel can be modified that he boots from SD card . But if this is possible, we can theoretically have 2 ROMs, same system type of course (or you have to wipe data ) and we can switch between this two ROMs by flashing the right kernel zip in recovery ( as example nexuskernelNormal.zip for the first system on the internal memory and nexuskernelSD.zip for the second system on the sdcard) its not the best way but it would be dual boot . so question @kernel devs : is this n00b thinking realistic ? or the save hard brick ? please tell me :D
[Galaxy S Plus I9001 Android Development] Sot0:
No! You dont understand my statement!

You have 2 Kernel and one is modified to boot the System which is placed on the SD Card.

So if the 'normal' kernel is on block 8 you boot the system on the EMMC. If you want to boot the System on the SD Card you replace the 'normal' kernel on block 8 with the one that is modified.

Got it now?

Yes, isnt that hard to understand, right? :silly:

It is possible to modify, but it is very risky and i dont want to loose my phone :silly:

You could switch them by copying them to the right place, either by a script, or a CWM flashable .zip, doesnt matter.

But you dont have to wipe data, because you create a seperate data partition on the SD Card. Yes it is not the best way of dual booting, but it is better than nothing :D

Regards
[Galaxy S Plus I9001 Android Development] edisile:
R: [REQ][DEV]Making dual boot for our phone

So we have to change kernel with a terminal command? Well it can be a lame but working way to get the wanted dual boot result.

Inviato dal mio frigo a pedali.
[Galaxy S Plus I9001 Android Development] Jonboy2011:
AW: [REQ][DEV]Making dual boot for our phone

i think flashable zip would be easier :)
[Galaxy S Plus I9001 Android Development] alireza7991:
Re: [REQ][DEV]Making dual boot for our phone

No wanted dual boot result but an alternative way to have similar result

I think better to have an option in reboot menu of power menu which replace kernel , or an app ?

Hi

I undrestand now ! Good Idea but thats not a real dual boot , but thats an easier way , may possible , I will take a try ;)
[Galaxy S Plus I9001 Android Development] Sot0:
Good Luck! ;)
[Galaxy S Plus I9001 Android Development] tomixdev:
AW: [DEV][I9001] Dual Boot / Boot From SDcard

some asian devs just released dual boot for galaxy nexus :good:

http://xdaforums.com/showthread.php?p=38957481
[Galaxy S Plus I9001 Android Development] edisile:
R: [DEV][I9001] Dual Boot / Boot From SDcard

Is actually the way we were thinking to do it...

< Insert funny Tapatalk signature here >
[Galaxy S Plus I9001 Android Development] hotheabilly:
:asians: they did it better than other people

-Sent from 4.2.2 powered i8150-
[Galaxy S Plus I9001 Android Development] RobyRc:
For what you need a dual-boot? Oh my God..
[Galaxy S Plus I9001 Android Development] tomixdev:
AW: [DEV][I9001] Dual Boot / Boot From SDcard

that's why i've posted it. ;)

53nT fr0m my g4Laxy neXu5
[Galaxy S Plus I9001 Android Development] edisile:
R: [DEV][I9001] Dual Boot / Boot From SDcard

You changed my signature in the quote... You're... a monster :'(

< Insert funny Tapatalk signature here >
[Galaxy S Plus I9001 Android Development] AlbertoSONIC:
Let's see this: http://xdaforums.com/showthread.php?t=1866675

You don't need to make a specific kernel or recovery (like syah kernel)... It's a great! You only need to run in terminal emulator some scripts to switch between first and second rom! Broodplank, what do you think?
[Galaxy S Plus I9001 Android Development] antonio8297:
for this method,you need a modded kernel(for boot from sd),and some partition on external sd....
[Galaxy S Plus I9001 Android Development] AlbertoSONIC:
Ok, but they are simply things to do, more easier than make a kernel like syah.... Right?
[Galaxy S Plus I9001 Android Development] antonio8297:
yes,it's only a mod of init.rc on kernel

for recovery like siyah,i knew that alaanto working on it,but don't know,if is died the project....
[Galaxy S Plus I9001 Android Development] RobyRc:
I ask again..for what in this whole world you need a dual boot?! I can't get it..you know,if you haven't a good SDcard class 10+ ,you will have major laggs..And for what ? We don't have a CM9 FULL stable and we need dual boot?!
[Galaxy S Plus I9001 Android Development] Sot0:
Thats the way i explained earlier in this Thread. I think thats the best way for us to go. Its far from perfect but dualboot though.

Yes but thats 'easy' compared to one kernel that can do both :silly:

Right! But still not an easy Project. I might post my thoughts on How-to do this later, in one Post, so its a bit more organized and comprehensible. I might also try to make it work some day, but im busy learning ( :mad: ) and i cant risk to brick my device until the Blackberry Q 10 arrives :silly: .

So no promises, but stay tuned.

Regards
[Galaxy S Plus I9001 Android Development] Sot0:
Ok, so now here are my thoughts on Dual Booting our device:

It is possible, here is the way i would say is the easiest:

1. You need a SD Card and you partition it so that there are 3 partitions: Data, System and Cache.

2. You need to edit the Rom so it uses the External SD Card:

Copy the System, Data and Cache Partition on the SD Card after the rom is installed normally on the internal storage, with commands like:

~ # dd if=/dev/block/mmcblk0p15 of=/dev/block/mmcblk1p1

p15 is the system Partition of the S+. It will be copied to Partition 1 on the SD Card (does not need to be Partition 1, just an example).

3. So after you copied all Partitions, you need to edit the Kernel of the Rom which is on the SD Card to use the Partitions you just created:

Unpack the boot.img, search for the init.rc file and change the corresponding lines. Here is an example for the /system Partition:

on emmc-fs

wait /dev/block/mmcblk[B]0[/B]p15
mount ext4 /dev/block/mmcblk[B]0[/B]p15 /system ro barrier=1

and then change it to:

wait /dev/block/mmcblk[B]1[/B]p[B]1[/B]
mount ext4 /dev/block/mmcblk[B]1[/B]p[B]1[/B] /system ro barrier=1

The Kernel now uses the External /system Partition.

I would suggest to make a folder on the SD Card or EMMC, where you place boot.img's, the one for the Internal rom and the one for the external Rom.

4. Install a Rom on the internal storage.

5. The Kernel is on /dev/block/mmcblk0p8. So if you want to change the boot.img, you have to replace it.

~ # dd if=[I]FOLDERPATHWITHBOOT.IMG's/boot.img FILE[/I] of=/dev/block/mmcblk0p8

6. It should boot the other Rom.

So that are just my thoughts :silly:

Just theoretical! Not tested!

Some feedback would be nice :)

Regards

Sot0

Thanks to dbx4 for the great Wiki Page
[Galaxy S Plus I9001 Android Development] edisile:
R: [DEV][I9001] Dual Boot / Boot From SDcard

Actually on theoretical plan it should work frawlessly (except lags because of low class SDs). The problem is that nobody is enough insane to try this... but if someone manage to get it working will work perfectly. My 2 cents...

< Insert funny Tapatalk signature here >
[Galaxy S Plus I9001 Android Development] AlbertoSONIC:
R: [DEV][I9001] Dual Boot / Boot From SDcard

Great! Maybe kernel developers like Educk, TheGame97, AlessandroXCV could make a specific kernel to be installed on SDCard!

Inviato dal mio GT-I9300
[Galaxy S Plus I9001 Android Development] Sot0:
AW: [DEV][I9001] Dual Boot / Boot From SDcard

No, you dont install the kernel on the sd card, you store it there until you need it. Actually (atleast theoretically) it isnt that hard to modify it so that it boots from sd card, but its a bit risky :silly:

To install a kernel on the sd card you would have to modify the bootloader so that you can choose which kernel you want, but thats complicated.
[Galaxy S Plus I9001 Android Development] AlbertoSONIC:
I know that kernel will not be installed on SDCard... I said that to simplify things! Why it's risky? What can happend? :confused:
[Galaxy S Plus I9001 Android Development] Sot0:
AW: [DEV][I9001] Dual Boot / Boot From SDcard

Ok sorry, i misunderstood that. Nevermind :silly:

You could brick your phone, playing around with these kernel files.
[Galaxy S Plus I9001 Android Development] singreale:
I use this method on my Motorola Atrix, however, I also modify the updater-script to install directly to the SD Card...this way I can also update my SD based rom (I manually partition my sd card beforehand).

I just got an I9001 at work for application testing and am hoping to dual boot on it. Unfortunately, on the other Samsung devices I have, I haven't managed to get this type of dual boot working because of strange boot.img packaging that Samsung seems to like using. If I get some free time in work, I'll try to make a custom SD version of CM10.1 for this phone, but of course no guarantees or DOAs.
[Galaxy S Plus I9001 Android Development] UpGado:
GOOD News

Jonboy2011 Made a dual boot kernel !! here :

http://xdaforums.com/showthread.php?t=2237725
[Galaxy S Plus I9001 Android Development] Tears for Fears:
Holy cr*p! Awesome!
[Samsung Galaxy W I8150] maros6666:
Hello. I have fresh install Windows 8 on my PC and i want to connect my Galaxy W with CM9 beta3 to PC. I have my old USB drivers for Samsung phones, which working on Win 7, but on Win8 it dosent work. Can anyone help me with this? Thanks
[Samsung Galaxy W I8150] Fishermanx2:
Ok, for the drivers rimember that you have to have Windows Update enabled; if Windows Update is enabled try to connect again the phone, if it still doesn't work I think you should wait until Samsung drivers for Windows 8 are released.
[Samsung Galaxy W I8150] deanz93:
open device manager ang update ur driver..i dont get any problem connect to windows 8 :highfive:
[Samsung Galaxy W I8150] -AdMiRaL-:
My first choice ;) if I want to connect my phone to my PC`s. It is for free, available in more than 40 languages and you can connect your phone via WiFi, Bluetooth or cable. Do not forget to install the MyPhoneExplorer client from Playstore.

View attachment 1500425
[Samsung Galaxy Nexus] Andrei P:
Hello

I`ve just noticed that my galaxy nexus has some wierd "ghost yellow menus" when everithing is white.

I have attached some pictures.

What can I do to get ridd of them?
[Samsung Galaxy Nexus] MerkurMan:
Looks like screen burn-in, which is unavoidable with an AMOLED display. My GNex has similar banding from the notification bar, soft-key bar, and the address bar in Chrome (which is why I've stopped using Chrome and reverted to stock Browser.)

I don't know if there's a way to fix it, but the fact is that if you have a static image displayed on the screen, it will retain itself, much like a plasma TV.
[Samsung Galaxy Nexus] Trekfan422991:
Man I hate the blue burn in the notification bar and the nav bar
[Samsung Galaxy Nexus] Streaker:
Isnt it the rest of the screen that have some kind of 'burn in' Or more specific, the rest of the screen is degenerated/worn? The yellow hue wasnt present on my first GN when I got it. I have two GNs, the newest is more bluish/cleaner white - crisper..
[Samsung Galaxy Nexus] montyfabio:
Same here.. I've got a blue ghost on the notification bar when the screen is white

Inviato dal mio Galaxy Nexus con Tapatalk 2
[Samsung Galaxy Nexus] Phazmos:
You're holding it wrong
[Samsung Galaxy Nexus] hp13:
We all have this. It's common on GNex. just ignore it.
[Samsung Galaxy Nexus] Andrei P:
If I can`t get ridd of it then What can I do to prevent it from getting worse?
[Samsung Galaxy Nexus] NexusDro:
Rotate the screen every now and then. If yoru phone is still under warranty, you can ask Samsung to replace it for you. Hopefully the new batch or SAMOLED are less prone to burn in.
[Samsung Galaxy Nexus] ray3andrei:
If this common on sampled screens why don't I have this issue ?
[Samsung Galaxy Nexus] RoadHazard:
Yeah. The pixels of these displays wear out slowly but surely with use (and subpixels of a certain color - green, I believe, although I'm not 100% sure right now - wear out faster than the others), but since the notification and navigation bars are mostly completely black (meaning those pixels are turned off and barely get used at all) those areas don't get worn out like the rest of the display does. So it's not that the bars are "burned" into the screen, it's rather that those areas are in better condition than the rest of the display.
[Samsung Galaxy Nexus] akira02rex:
This^^

:good:
[Samsung Galaxy Nexus] NexusDro:
I was thinking that too but did you guys notice that when the screen is displaying back it is not absolutely black? The pixels do glow a little bit for faster screen switching (it was mentioned in some other posts). I think it could also be this static glow that causes the burn in.
[Samsung Galaxy Nexus] jimmyco2008:
What's this about a new batch? Did Samsung start using new displays with the GalNex recently?
[Samsung Galaxy Nexus] NexusDro:
Sorry, I meant like a production batch. Don't thing they will use new displays with the Gnex.
[Samsung Galaxy Nexus] druhaul:
I have insurance thru VZW which gives me a 2 year warrantly. I already had VZW replace 2 Gnex's, because of screen burn in, and if I get burn in again, I'll have them replace it again. They really don't give you a problem with replacing the phone, just tell them you did all like troubleshooting methods like factory data reset etc. and the burn in remains. They will send you a "like new" refurbished replacement. All the replacements I have got have been in great condition. If you are under warranty do not tolerate screen burn in, get it replaced immediately.
[Samsung Galaxy Nexus] k_myk:
I've seen 5 gnex and each one of them had different screen. I mean every one looked different, worse or better. It looks like producing a good quality amoled display is very difficult or Samsung has very low QA for them... I wouldn't worry about it if I were you. Just use it... It's not that you often display static full screen gray background.

Wysyłane z mojego Galaxy Nexus za pomocą Tapatalk 2
[Samsung Galaxy Nexus] Andrei P:
Be happy you don`t have it!
[Samsung Galaxy Nexus] speedyink:
I think it's more common with the people who brag about their 3 or more hours of on screen time a day.

Those of us who are more like 30 mins to an hour a day of on screen time are not going to be affected near as fast.
[Samsung Galaxy Nexus] Dr.Pioneer:
its also for me

and also for most of nexus devices even nexus 4...

wierd...
[Samsung Galaxy Nexus] stinky73:
What we used to do with pro tv cameras (tube or chip) that got immediate burn in thro major over exposure on a part of the screen (like retinal burn when you look at a bright light) was to point them at a white object and overexpose the whole picture field so "burning in" the whole screen... Maybe a daily exposure for a certain period of time to pure white over the whole phone screen could help to mask the effect?

Somebody close to a charger all the time feel like trying? :D

sent from my still superb Google I/O 7510 (xda hd)
[Samsung Galaxy Nexus] andersonso:
is it build in feature? you may try to contact samsung customer support and ask.
[Nexus 4 Q&A, Help & Troubleshooting] DroiDAddicT14:
So how is it that me, along with 4 of my friends, all got the nexus 4 and my battery is the only one that drains drastically, no matter what I do.... these are my stats at this very moment...
[Nexus 4 Q&A, Help & Troubleshooting] Austin3161337:
Well you got nearly 50 % left and how long was the screen on during the 5 hours?

(Heavy usage or low-moderate ?) Personally i dont own a nexus my self (Getting one ;) ) but i wish i can help in any way shape or form.
[Nexus 4 Q&A, Help & Troubleshooting] DroiDAddicT14:
I love the phone and when you get it I'm sure you'll agree lol but the screen only has a little less than an hour of screen time and the haee has been fairly low.
[Nexus 4 Q&A, Help & Troubleshooting] DroiDAddicT14:
Usage*
[Nexus 4 Q&A, Help & Troubleshooting] Nickel Dime Bay:
Its not that bad, everyone will use theirs differently. I'm actually impressed with my battery life. This is my second charge, first one got 3 hours + of screen time.
[Nexus 4 Q&A, Help & Troubleshooting] jordanadams86:
I'm impressed too. Not used it too much today but still.
[Nexus 4 Q&A, Help & Troubleshooting] artifex21:
@up 23 hours and wifi always on ?!?!?!? That's amazing !
[Nexus 4 Q&A, Help & Troubleshooting] suriya83:
I don't think so..... Android OS usage a bit high?
[Nexus 4 Q&A, Help & Troubleshooting] Pully:
Moderate usage today and not in best of signal areas.
[Nexus 4 Q&A, Help & Troubleshooting] jordanadams86:
The WiFi has been on all the time. As I said though, I've not been using it for much apart from texting and a bit of light browsing.
[Nexus 4 Q&A, Help & Troubleshooting] cundiffr:
Google plus is using a lot, I would suggest turning instant upload off or set it to upload via WiFi only,
[Galaxy S III Themes and Apps] yakuppko:
​

Hello guys,

I want to ask if there is any chance to make MOD like in the video. It was one of my best feature on my iphone.

m.youtube.com/index?&desktop_uri=/#/watch?v=_VI_N7UDB4s

thank you very much.

yakup
[Galaxy S III Themes and Apps] bilak:
if you want swype keyboard, just go to www dot swype dot com register and follow instructions
[Android Q&A, Help & Troubleshooting] ChrisMore:
Hello all, i'm having some difficulties with customizing my rk2918 based tablet. I managed to download the original firmware and it is in .img format. Now I have managed to take apart the single .img file into multiple .img files, customized and rooted it with dsixda's kitchen and rebuild the ROM. Now my question is, can I somehow convert the zipped package back into the multiple .img files, or even into the single .img file so I can flash it with RKupdate or RKbatchtool? I have searched my ass off for a solution but I can only find tuts on how to extract image files, not the other way around....
[Android Q&A, Help & Troubleshooting] uros0104:
Not sure I understand your situation, do you now have multiple img files, or one zip file?
[Android Q&A, Help & Troubleshooting] vadash:
is there a way to extract from the tablet the parameter file that rk2819tools uses? to have a backup?

THX
[Nexus 7 General] jax_pl:
First sorry for my English but I'm weak in the language and have to use a translator.

Unfortunately, I also received a nexus with a flicker screen. Unfortunately the way to seal the upper wifi contact with me so I did not help Wondering how you can be "cured" nexus of flicker. Helped seal the contacts but both wifi and bluetooth range was then tragic, so I came up with the idea of ​​using this sizeable piece of metal at the bottom of the back cover. I used a thin cable with exposed contacts on both sides (from the wifi antenna short enough so that it only touches the lower contact of the antenna connector on the side of the plate longer for good contact). After installing everything (upper contact is still sealed with wifi) turned speedtest and did not notice any flickering, now everything is running smoothly, the same range as before the modification. The only drawback I noticed is that now when I listen to music through headphones bluetooth wifi is working out extremely slowly, but when using the same wifi these problems do not exist. I send pictures to people who want to try this method. Just remember the good sealed the plate, it does not touch the plate on the tablet. Write how this method works for you. Regards
[Motorola Droid RAZR] sullytrny:
where can I get the latest app. Google Now says update available but due to custom rom I can't download it...

any idea's?

thanks

XT912 Simplex 1.3 - 64gb SD 8gb SD-ext
[Motorola Droid RAZR] defcon888:
Are you asking about the GAPPS?
[Motorola Droid RAZR] sullytrny:
yes but I just want/need the voice search part for Google Now, I think. my rom is self contained. just 1 zip

thanks

XT912 Simplex 1.3 - 64gb SD 8gb SD-ext
[Motorola Droid RAZR] sullytrny:
to clarify when I open Google now in the top of the screen it says update available. But when I go to Google store /play or it says it's not available for my device

XT912 Simplex 1.3 - 64gb SD 8gb SD-ext
[Motorola Droid RAZR] O_G:
Moved To Q&A​

Do not post questions in the dev section.​
[Motorola Droid RAZR] 85gallon:
It wouldn't let me update it from stock ICS with Google Now installed.

But I just installed CM10 Licorice and booted over into that and the play store let me update it. What ROM you running? If it is an ICS ROM it must be an ICS versus JB problem.
[Motorola Droid RAZR] sullytrny:
sorry

XT912 Simplex 1.3 - 64gb SD 8gb SD-ext
[Captivate Q&A, Help & Troubleshooting] so_iccy:
i have been running slim bean latest till date for some time now on my Captivate. few days back in the morning while i was playing music, my phone freezed for about 30 seconds and suddenly restarted. the problem is that the phone cant even boot. once it loads the kernel image and enters the bootanimation for about 10 seconds, it will keep rebooting till infinity. i left the phone for hours and flashed another Jb rom through the external sd card. after about 4 hours, the phone freezed and restarted with the same circling restart again. i left it for hours longer than before and succeeded in flashing ics rom. this time around, the phone freezed and restarted as usual in 1 hr. i tried to go back to stock gb which i did with heimdall one click package. after flashing the phone rebooted in recovery with errors that cant mount sd card and so on. i flashed an ics kernel luckily for me i was able to access the sd card this time around and flashed an ics rom. within 10nmins the phone freezed and restarted as usual. from here was the last i got progress with this phone. if i succeed in getting into recovery, i will get an error cant mount sd card likewise cant mount ext sd card. the condition of my phone now is that it never enters recovery no matter what i flash all it does, is restart in 2 - 3 secs whether in recovery or not. please what is the solution to this problem. is the chip responsible for mounting sd cards in the phone's main board dead or alive? because each time i manage to see sd card again, the content is always untouched.
[Captivate Q&A, Help & Troubleshooting] BWolf56:
Getting in download mode and flashing KK4 through Odin is your best bet atm. Once that's done, keep it that way (only get the apps you

need

) and see if it reboots again. If so, it is most likely a hardware issue but I'm thinking it isn't so far.

I would also suggest to redownload the ROMs and kernel you want to use and delete the hold ones.

If everything goes well with KK4, move up to a custom ROM (I'm sure you know the drill). But once again, only install the apps you really need (fresh install instead of restoring). A bit of a slow process but better be safe than sorry.