Hi. I dunno how my xperia mini st15i phone spoiled. It won't start up. Each time start up it just showed Sony logo and then jump into this screen which I uploaded. Can't get into any mode. all it just showed this screen. What's that? Bricked? Flashing can save it? Please help me. /.\
ikkialex said:
Hi. I dunno how my xperia mini st15i phone spoiled. It won't start up. Each time start up it just showed Sony logo and then jump into this screen which I uploaded. Can't get into any mode. all it just showed this screen. What's that? Bricked? Flashing can save it? Please help me. /.\
Click to expand...
Click to collapse
is your phone rooted or boot loader unlocked? Or is it completely unmodified?
I dunno. My phone is original before and due to some problem I send to mobile shop they say they help me formatted and I dunno whether it is bootloader locked or unlocked. I need a quick reply as it is important..
Sorry, but wrong section mate! This is the correct section for ur device:
http://forum.xda-developers.com/forumdisplay.php?f=2054
Thread reported.
"To err is human, to forgive is divine"
Sent from my SGS II
I flashed it and solved it. It's such a simple question I just ask can flashing solve it or cannot. Just yes or no and you all so stupid can't even answer. Zzz everytime I post and ask question here also no ppl would answer some even simply give nonsense answer. most of you pretending pro here. shame of you becoming member act pro and simply give useless answer to others. Spoiled XDA image.
If U want any help - tell as much details as U can. U didn't say in 1st post if it was modified or not. So stop complaining about how answers are useless and be grateful that someone is willing to help You with YOUR problem. Cause non of us messed up Your phone. U did
Related
Stuck On Vibrant Screen After Trying To Flash Blackfroyo_nero4_v1.4....... HELP ME!
What Can I Do?
Jblack41 said:
Stuck On Vibrant Screen After Trying To Flash Blackfroyo_nero4_v1.4....... HELP ME!
What Can I Do?
Click to expand...
Click to collapse
first of all....wrong section....but mmelo76 will handle that...
second......Odin back to stock and try again....calm down....read the stickys
Jblack41 said:
Stuck On Vibrant Screen After Trying To Flash Blackfroyo_nero4_v1.4....... HELP ME!
What Can I Do?
Click to expand...
Click to collapse
ok this is what i dont get.. You're smart enough to know about Xda Development Forums, you're smart enough to root and flashing your phone. However you're NOT smart enough to A) Google Bricked Vibrant (which will show you MANY MANY posts on the same topic ) B) use the search tool ??? Cmon seriously, I come here to learn and maybe help a person in need if I can or ask a question if i have done my research and still no clue.. I almost posted today on how Odin and Cappy works b/c i have one at home that i flash from time to time, but guess what? i read and found my answer.. sorry to rant.....
To Answer your question look up ODIN and viola all ur problems solved.. Next time create a backup so you can always fallback in case of a bad/non compatible Flash..
Samsung may be coy with the official Froyo, but I cannot give them enough props for making a virtually unbrickable phone.
+1 had my scare a while back lol
Sent from my SGH-T959 using XDA App
hey Guys,
I need Help please
I got a new S2 GT- I9100 10 days ago; it had a problem with the charger as it shut down once I connected the charger; so we changed the Firmware and the problem solved but since then the back button and home button doesn't work and when I receive or make a call I don't hear anything or the caller doesn't hear anything
we tried to change the firmware many times but still no solution
please help me guys it's a new phone and the shop I bought from told me he can't do anything as we changed the firmware
waiting for your help
Flash back original ROM and send it for RMA.
Stileth said:
Flash back original ROM and send it for RMA.
Click to expand...
Click to collapse
Thanks for your reply
Could you please tell me more details about how I could do this
beauty.touty said:
Thanks for your reply
Could you please tell me more details about how I could do this
Click to expand...
Click to collapse
hey dude please be more specific in ur posting of the issue.ur not that noob to provide the neccessary details of ur ROM version, kernel etc for people to help u out.
rather than doing that ur just weeping over here with just prsenting the issue, which in no way provide the data sufficient for people to help u out.
Sun90 said:
hey dude please be more specific in ur posting of the issue.ur not that noob to provide the neccessary details of ur ROM version, kernel etc for people to help u out.
rather than doing that ur just weeping over here with just prsenting the issue, which in no way provide the data sufficient for people to help u out.
Click to expand...
Click to collapse
sorry for being not specific but I wanna know what is "send it for RMA"; as I already got the original ROM and nothing change; still have the same problem
Could you please tell me what to do?
RMA = http://en.wikipedia.org/wiki/Return_merchandise_authorization aka send it back where you bought it
If you have original ROM and no Yellow Triangle or increased custom counter (if yes use TriangleAway app), so they can't know you were messing with your phone then you can send it. Do wipe cache/data and factory reset.
hello everyone ... i think i have bricked my device
i cant boot it normally ... it seems pc can see the phone but the phone is not responding to any order
when i opened cmd ... i typed "adb reboot recovery" ... to make phone enter recovery ... but it said device not fond ... even though odin does recognize the device .. and pc too
any ideas
please help
regards
BADroid-z said:
hello everyone ... i think i have bricked my device
i cant boot it normally ... it seems pc can see the phone but the phone is not responding to any order
when i opened cmd ... i typed "adb reboot recovery" ... to make phone enter recovery ... but it said device not fond ... even though odin does recognize the device .. and pc too
any ideas
please help
regards
Click to expand...
Click to collapse
Can you get your phone into either download or recovery mode ??
Please provide more details like:
Which rom/kernel?
What all did u do that ended in bricking?
Able to enter Recovery or Download modes?
New to android flashing and stuff?
"To err is human, to forgive is divine"
Sent from my SGS II
i can enter download mod ... but when tried to flash stock rom .. odin stuck on setup connection !!!
and no i cant enter recovery or boot normally .. i flashed a worng recovery file by odin and this is how the problem happened
thanx 4 replying
i am not new to flashing with odin my friend .. its just i flashed files of l1900 instead of l9100g
Mistaking an I9100G ROM for a I9100 ROM is not an honest mistake.
If you don't consider yourself new to this at least double check your files and triple check xda's threads.
Sent from the little guy
reply
gastonw said:
Mistaking an I9100G ROM for a I9100 ROM is not an honest mistake.
If you don't consider yourself new to this at least double check your files and triple check xda's threads.
Sent from the little guy
Click to expand...
Click to collapse
my dear considering my self as new or expert is not the point ... i have a damaged phone and i am asking for help ... i checked XDA
no one has the same problem .. they all were able to enter recovery
i dont even like samsung ... my device is HTC ... at least when they publish a new device they give it a new name ... not change a letter
thanx for replying and thanx for your attempt to help
BADroid-z said:
my dear considering my self as new or expert is not the point ... i have a damaged phone and i am asking for help ... i checked XDA
no one has the same problem .. they all were able to enter recovery
i dont even like samsung ... my device is HTC ... at least when they publish a new device they give it a new name ... not change a letter
thanx for replying and thanx for your attempt to help
Click to expand...
Click to collapse
What about this ??
i will try it out and report ... thank u soo much
BADroid-z said:
my dear considering my self as new or expert is not the point ... i have a damaged phone and i am asking for help ... i checked XDA
no one has the same problem .. they all were able to enter recovery
i dont even like samsung ... my device is HTC ... at least when they publish a new device they give it a new name ... not change a letter
thanx for replying and thanx for your attempt to help
Click to expand...
Click to collapse
Ok....so you're sayin' that you checked xda and all users with a similar issue than yours could get to recovery mode?
You need to check your "searching" concept.
Of course, it's not your fault samsung released a device with a letter at the end, that is just common sense. Care to flash HTC one ROM into an HTC one x? I mean, it's the same right, who cares about the letter at the end.......
If you look up closely...you'll see that I was trying to help you, to read and learn before you go on borking is a hell of an advice if you'd ask me.
my dear u still dont get it ... my download mod is not the typical download mod ... my screen only shows "a cellpohne connected to a pc with triangle in the middle of the connection" ... when i "searched" on XDA ... i found out that such a screen is also a download mod .. but not the typical one ... and i think it useless since every time i try to flash some rom with odin it stuck on setup connection
and by the way its huuuuge difference between htc one and the htc one x ... they have different shapes
any way this is not our subject ... i really do appreciate your help and any help so much .. i mean this thread was created to help people right
thank u so much
regards
You are in forced download mode, so your device is begging you to flash something. When you get that screen plug your phone to the PC and flash a I9100 stock ROM.
In order for your pc to see the device reinstall kies and kill all applications before you start flashing.
Doesn't work?
Try another PC.
Sent from the little guy
gastonw said:
You are in forced download mode, so your device is begging you to flash something. When you get that screen plug your phone to the PC and flash a I9100 stock ROM.
In order for your pc to see the device reinstall kies and kill all applications before you start flashing.
Doesn't work?
Try another PC.
Sent from the little guy
Click to expand...
Click to collapse
If I am not mistaken, I think the OP has an I9100G.
"To err is human, to forgive is divine"
Sent from my SGS II
Thought he flashed an I9100G ROM on his I9100 phone.
Sent from the little guy
gastonw said:
Thought he flashed an I9100G ROM on his I9100 phone.
Sent from the little guy
Click to expand...
Click to collapse
"its just i flashed files of l1900 instead of l9100g"
"To err is human, to forgive is divine"
Sent from my SGS II
hey guys ... i downloaded a stock rom for 9100g ... but as i mentioned before it always stuck on setup connection
so anyway i sent it to an expert whom fix it cost me 35$
thank u sooooo much .. u r the best
appreciate your time and effort
god bless u
regards
your little brother from Syria
BADroid-z said:
hey guys ... i downloaded a stock rom for 9100g ... but as i mentioned before it always stuck on setup connection
so anyway i sent it to an expert whom fix it cost me 35$
thank u sooooo much .. u r the best
appreciate your time and effort
god bless u
regards
your little brother from Syria
Click to expand...
Click to collapse
Good for u!
Wonder how they fixed it though...
Please add [SOLVED] to the title of ur post.
"To err is human, to forgive is divine"
Sent from my SGS II
actually i dont really know how but he disassembled the device ... and played with some boot hardware !!!
thanx for your efforts guys
Hello guys..
I would like you to go through XDA new users guide and you must read the FORUM RULES before posting here or anywhere else on xda.
The rate at which the new users are joining xda on daily basis is very high. A lot of users join because they have got some problems with their devices like bricked phone, bootloops etc. because of following incorrect processes. Some join to help out others, to share their knowledge and gain more.
So basically this thread is for all of those who want to ask questions and answer those.
So those who want to help here, just try to answer without flaming, let it be answered thousands of times earlier, show them the path, direction and let them do things on their own. Do not spoon feed, rather just try to point them to right direction.
This whole idea is of @undercover and the former OP Bruce Wayne and I thank him.
To The people asking questions here, don't forget to check for the links from 2nd post. That will help you increase your knowledge, and do answer the questions asked by others if you know the answer. Please don't simply say thanks if some member helps you, instead use the thanks button, that will help us keep this thread less cluttered.
[Ask Any Question] [Help Thread] NOOB FRIENDLY
For a list of guides,refer here.
http://forum.xda-developers.com/showthread.php?t=2073370
Thanks to @Hpsgill
[Ask Any Question] [Help Thread] NOOB FRIENDLY
Here are the names of some of my friends helping you on the thread.(Updated often)
@iamareebjamal
@Zatta
@dagger (the original OP of this thread)
@Stryke_the_Orc
@prototype-U
@EatHeat
@nlygamz
@plegdroid
@Gogeta
@malybru
@Jimlarck
@ADDICT.ANK
@Primokorn
@luqman98
@hnkotnis
@thenookieforlife3
@ИΘΘK¡€
@Sam Nakamura
@xunholyx
@SubwayChamp
@ktmom
@Ibuprophen
Please do let me know if I have missed some names..
[Ask Any Question] [Help Thread] NOOB FRIENDLY
Atlast
Please dont spam the thread..
i want to know how to decrypt/encrypt the shell(.sh) file of clockworkrecoverymod(cwm) for xperia 2011 devices...is there any tool i am missing
Hi mate!
Nice to see a much needed thread like this here.. hope new members as well as old ones find this thread useful! :thumbup:
"To err is human, to forgive is divine"
Sent from my SGS II
Oh, hello there
Sent from my microwave oven. Make: LG Model: N⁴
mamujaan said:
i want to know how to decrypt/encrypt the shell(.sh) file of clockworkrecoverymod(cwm) for xperia 2011 devices...is there any tool i am missing
Click to expand...
Click to collapse
Hey sorry for not replying,
As I am not in scripting, I am completely unaware of such things. I tried hard with the search but couldn't find anything useful. I didn't reply because I was expecting a reply from someone with answer. I saw your thread but it is also unanswered.
You can try asking help from the people in your section working on kernels and shell scripts.
Thanks.
A Hero Can Be Anyone. GENERAL HELP THREAD
Hi, I've got a Samsung Galaxy S2 and I've got this problem where it freezes upon reaching the "4G" logo on startup. I looked online for answers and someone recommended to "Odin a stock ROM from your PC", and then they posted a link to this site. Now, I have no idea how to Odin, or what a stock ROM is, so could anyone help me out?
piper5by5 said:
Hi, I've got a Samsung Galaxy S2 and I've got this problem where it freezes upon reaching the "4G" logo on startup. I looked online for answers and someone recommended to "Odin a stock ROM from your PC", and then they posted a link to this site. Now, I have no idea how to Odin, or what a stock ROM is, so could anyone help me out?
Click to expand...
Click to collapse
http://androidforums.com/samsung-galaxy-s2-t-mobile/628449-how-odin-any-stock-rom.html
piper5by5 said:
Hi, I've got a Samsung Galaxy S2 and I've got this problem where it freezes upon reaching the "4G" logo on startup. I looked online for answers and someone recommended to "Odin a stock ROM from your PC", and then they posted a link to this site. Now, I have no idea how to Odin, or what a stock ROM is, so could anyone help me out?
Click to expand...
Click to collapse
Yes.
Welcome to XDA.
Please go to your device's forum using the search your device box from site. type samsung galaxy s2 and choose your device from the options. Look for the stock odin firmwares thread there. Download the one from your region, see the instructions given on flashing there. If you don't understand the instructions, check out youtube videos for that.
Odin is a easy process and just needs instructions to be followed correctly.
And inform us here when you recover your phone again.
A Hero Can Be Anyone. GENERAL HELP THREAD
I just received factory warranty replacement I want root using toolkit V7.3.2 download from XDA i think... Got another one as well SRS one click root both paid for neither will work DID a factory update was 4.1.1 now 4.1.2 i get into Odin and it fails halfway through loading the first step please help only want root nothing special.
Also: after installing drivers it tells me when plugged into the computer windows 7 "hardware ID is missing"
Sent from my SCH-I535 using Tapatalk 2
Hi guys! as you can see I am new here
I posted a question in a old thread whose topic was similar to my question but no one answered(cmon! i followed the rules!!!)
This annoyed me a lot, those who preach these rules dont bother to help those who keep it up, I am glad a thread like this is here.
So here I am with my question:
I own a samsung galaxy grand
So i installed the Cyanogenmod 10.1
But I am unable to make calls, it says turn off airplane mode, which i did, rebooted and all
here is the weird part:
I CAN receive calls from other phones but cannot make calls because my phone is still in airplane mode even i removed it from airplane mode.
So can anyone help me?
CliffordKT said:
I just received factory warranty replacement I want root using toolkit V7.3.2 download from XDA i think... Got another one as well SRS one click root both paid for neither will work DID a factory update was 4.1.1 now 4.1.2 i get into Odin and it fails halfway through loading the first step please help only want root nothing special.
Also: after installing drivers it tells me when plugged into the computer windows 7 "hardware ID is missing"
Sent from my SCH-I535 using Tapatalk 2
Click to expand...
Click to collapse
Hi,
Make sure you close samsung kies when you try to use odin.
As for flashing anything from odin, you will need to boot into download mode (vol. Down + power + home) after switching phone off. Then press vol. up, you will see a warning, first and after that comes the downloading screen.
Now make sure drivers are installed correctly, open odin, and now connect phone with usb cable, wait for some time till it shows a yellow box saying COM : ID xxx , something like that and now you can flash relevent files through relevent options. Wait for pass (green) signal and you're done.
codeapprentice said:
Hi guys! as you can see I am new here
I posted a question in a old thread whose topic was similar to my question but no one answered(cmon! i followed the rules!!!)
This annoyed me a lot, those who preach these rules dont bother to help those who keep it up, I am glad a thread like this is here.
So here I am with my question:
I own a samsung galaxy grand
So i installed the Cyanogenmod 10.1
But I am unable to make calls, it says turn off airplane mode, which i did, rebooted and all
here is the weird part:
I CAN receive calls from other phones but cannot make calls because my phone is still in airplane mode even i removed it from airplane mode.
So can anyone help me?
Click to expand...
Click to collapse
That seems crazy, if it shows flight mode, you should also not be able to recieve calls. Seems a problem with the rom. Try wiping cache/dalvick cache /data from cwm/twrp and see if it fixes the bug. If not contact the rom developer or flash another/stock rom and reflash CM 10.1 to see if the problem persists.
Also welcome.
A Hero Can Be Anyone. GENERAL HELP THREAD
Close Samsung Kies.... By disabling or forcing it to stop?
Sent from my SCH-I535 using Tapatalk 2
CliffordKT said:
Close Samsung Kies.... By disabling or forcing it to stop?
Sent from my SCH-I535 using Tapatalk 2
Click to expand...
Click to collapse
You can use task maneger or just uninstall it if it isn't needed as such.
A Hero Can Be Anyone. GENERAL HELP THREAD
Sent from my SCH-I535 using Tapatalk 2
CliffordKT said:
Will try as soon as possible, thank you for your help. At work gotta remove and install vct...
Sent from my SCH-I535 using Tapatalk 2
Click to expand...
Click to collapse
Inform us if you are successfull or not Also use the button whenever you want to say thanks or if someone helps you. It makes thread less cluttered with all thanks you for help posts. Also do read op of this thread again, and see links from my signature. It will help you to gain some more knowledge on xda.
Good luck with the flashing :thumbup::thumbup:
A Hero Can Be Anyone. GENERAL HELP THREAD
Will not boot
I have this thread here http://forum.xda-developers.com/showthread.php?p=40951364#post40951364
Where I was stuck at the "Samsung" logo, and now I have used Odin to stock and it says PASS yet i am stuck on the screen with the Android and the spinning stuff in his chest and the bar on the bottom moving.
It is stuck on this screen
I have no idea what to do now or how to get my stuff back.
tguerrerojr said:
I have this thread here http://forum.xda-developers.com/showthread.php?p=40951364#post40951364
Where I was stuck at the "Samsung" logo, and now I have used Odin to stock and it says PASS yet i am stuck on the screen with the Android and the spinning stuff in his chest and the bar on the bottom moving.
It is stuck on this screen
I have no idea what to do now or how to get my stuff back.
Click to expand...
Click to collapse
Well, I have gone through your thread. Please can you confirm if it is same result with different firmware? If the problem still persists, please take your phone to service centre. Act as dumb and don't let them know that you have tried rooting. They will get it fixed for you.
A Hero Can Be Anyone. GENERAL HELP THREAD
************BEFORE YOU ANSWER, I DONT WANT ANY STUPID ANSWERS LIKE "Be patient, read, understand and do it" I HAVE BEEN WAITING FOR A DAMN WEEK ON FORUMS AND NO ONES HELPING ME AT ALL. I THOUGHT THIS WAS A GOOD FORUM? PEOPLE JUST WRITE STUPID ANSWERS THEN DONT RESPOND?!?!?!?!?!?!?!?**************************** ******
i rooted my phone and went to delete some applications and accidentally deleted something important. Now this message comes saying:
"Sorry!
The application Home(process com.lge.subdisplay.app.subdisplayhome) has stopped unexpectedly. Please try again "
i can still use the phone but this keeps popping up with a force close button.I cant even find the firmware for the doubleplay. I was reading about "flashing the rom to stock" but i cant find anything compatible with 2.3.4,
i already resetted it to factory settings with no help. i didnt back it up with nandroid.
can someone please give my some roms for the lg doubleplay and instructions on how to pleasEEE
EDIT:
I tried to find the stock rom but i cant so i found this rom called Zeus v7. I downloaded it and when i open it opens to three folders:
META-INF
system
boot.img
I have no clue what to do from here on
remeber, i cant access the phone because the error comes up every second
im really stuck here
idealk23 said:
************BEFORE YOU ANSWER, I DONT WANT ANY STUPID ANSWERS LIKE "Be patient, read, understand and do it" I HAVE BEEN WAITING FOR A DAMN WEEK ON FORUMS AND NO ONES HELPING ME AT ALL. I THOUGHT THIS WAS A GOOD FORUM? PEOPLE JUST WRITE STUPID ANSWERS THEN DONT RESPOND?!?!?!?!?!?!?!?**************************** ******
Click to expand...
Click to collapse
I don't know about anyone else, but I stopped reading after this part. I didn't even get to the problem. Remember, you messed up your phone. You need others to assist you. Complaining that other people aren't helping you fix your mistake fast enough isn't going to encourage many people to want to try harder to help you.
Edit: I peaked at teh rest of your post. I think it's a fairly simple fix. But I'm not going to respond to your demanding post that is so overtly negative about this community that has helped so many.
If you reask the question nicely I'll be more than happy to try and assist you.
Skipjacks said:
I don't know about anyone else, but I stopped reading after this part. I didn't even get to the problem. Remember, you messed up your phone. You need others to assist you. Complaining that other people aren't helping you fix your mistake fast enough isn't going to encourage many people to want to try harder to help you.
Edit: I peaked at teh rest of your post. I think it's a fairly simple fix. But I'm not going to respond to your demanding post that is so overtly negative about this community that has helped so many.
If you reask the question nicely I'll be more than happy to try and assist you.
Click to expand...
Click to collapse
Sorry if i was being angry, it was just that ive been trying to ask gor a LONG time and it gets my frustrating. But please forgive me. How can i fix this
idealk23 said:
Sorry if i was being angry, it was just that ive been trying to ask gor a LONG time and it gets my frustrating. But please forgive me. How can i fix this
Click to expand...
Click to collapse
Well I didn't read your post as thoroughly as I should have before saying I thought I had the correct answer.
I missed where you said you were using an LG Doubleplay. This forum is for the HTC Sensation. These are VERY different devices. What would work for the Sensation may not work for an LG device. I don't want to give you bad information.
You are much better off asking your question in the Doubleplay forums where users familiar with the device will be able to assist you.
there isnt a forum for the double play thanks anyways
wait. i downloaded this file called c279.dll thats 89 mb. can i use this with odin to re flash the phone?
You are flashing the wrong ROM...find one for sensation
idealk23 said:
************BEFORE YOU ANSWER, I DONT WANT ANY STUPID ANSWERS LIKE "Be patient, read, understand and do it" I HAVE BEEN WAITING FOR A DAMN WEEK ON FORUMS AND NO ONES HELPING ME AT ALL. I THOUGHT THIS WAS A GOOD FORUM? PEOPLE JUST WRITE STUPID ANSWERS THEN DONT RESPOND?!?!?!?!?!?!?!?**************************** ******
i rooted my phone and went to delete some applications and accidentally deleted something important. Now this message comes saying:
"Sorry!
The application Home(process com.lge.subdisplay.app.subdisplayhome) has stopped unexpectedly. Please try again "
i can still use the phone but this keeps popping up with a force close button.I cant even find the firmware for the doubleplay. I was reading about "flashing the rom to stock" but i cant find anything compatible with 2.3.4,
i already resetted it to factory settings with no help. i didnt back it up with nandroid.
can someone please give my some roms for the lg doubleplay and instructions on how to pleasEEE
EDIT:
I tried to find the stock rom but i cant so i found this rom called Zeus v7. I downloaded it and when i open it opens to three folders:
META-INF
system
boot.img
I have no clue what to do from here on
remeber, i cant access the phone because the error comes up every second
im really stuck here
Click to expand...
Click to collapse
Firstly if you try to flash a wrong rom...you risk bricking...specially without backup.. find sensation roms by googling htcsensationroms
The rom you have mentioned is NOT a sensation rom
Dont open the rom you downloaded, connect the phone to ur pc and copy the rom to sd card
Also you need to speciify if you are S-On or S-Off.....
Provide more info abt ur situation (android version, recovery, S-On/Off) ...ill try to help
AND there are some really good devs on these fora...professionals(ask Skipjacks nicely, you should have your problem solved)....but you are going to have to ask NICELY....I'm preety much a noob but can handle rooting a etc
OK...just refreshed this thread...guess youre in the wrong place...look for LG forums...best of luck
sorry, im using the lg double play v 2,3,4 and im hopeless right now.
can anyone help?
No. You are asking this in the wrong place. You are going to get bad advice here that will likely break your phone even worse. Find an lg forum.
And do not use odin to update an lg phone!
Sent from my HTC Sensation using xda app-developers app