Develop Bugs

[Q] {PROBLEM} Wifi turned gray

Pleas help. i have stock rom 4.1.2 jellybean running on my i9250 suddenly the wifi have turned gray and its not getting on neither its scanning nor its turning on. Build Number is JZO54K. please help................

did you try a reboot or direct battery pull?

leose said:
did you try a reboot or direct battery pull?
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Click to collapse
did hard reset and also pulled the battery and try but it shows gray only

please help............

Send for Warranty
bilal786_110 said:
please help............
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I literally just got back my phone from Samsung support after this happen to me. Wifi just sits there saying "turning on wireless" but never does and never even makes it to showing you any available wireless networks so you can choose to connect right???
I tried flashing radios and all kinds of 4.03/4 and JB roms... it was no help (although I see the phone came back to me with 4.01/ITL41F and radio KK1 on it). To make things worse I have a international Galaxy Nexus and Samsung USA will not do warranty repairs for international devices. Lucky the vendor I buy from has a good buyer relationship with his international supplier and they handled it for me.
Just noticed you said stock so the following may not apply:
My advice is to backup your phone, wipe it, flash back to a stock roms, re-lock the bootloader and call in to Samsung USA then send it in for warranty repair. You can do all of that with the Galaxy Nexus Toolkit. It took 14 days in my case to get my phone back. It should take less if your Galaxy Nexus is a US version.

Does Flashing Stock Firmware Tar trip KNOX on the Note 4?

I'm having issues with my phone reverting to 3G after only being on LTE for a minute no matter how good of a signal of LTE I have. This just started today, and I have refreshed the profile, prl. I had the Sprint people remotely update my phone, and they also checked for issues in my area and there are none. I also factory reset/data wiped my phone and it didn't help either.
So before I call Samsung and tell them my issues for a replacement I wanted to try installing the Factory TAR via Odin to see if that might fix it since I guess factory reset may not really touch any corrupt modem/radio files really.
I know that on the Note 3 it didn't trip it, but I was wondering if someone has had the chance to do this yet on ours to see if it tripped it?
I might call Best Buy and tell them my problem and see if they will switch it out for me even though I am out of the 14 day return window. I really don't want to send it back to Samsung and wait a week or more for a new phone.

slickdaddy96 said:
I'm having issues with my phone reverting to 3G after only being on LTE for a minute no matter how good of a signal of LTE I have. This just started today, and I have refreshed the profile, prl. I had the Sprint people remotely update my phone, and they also checked for issues in my area and there are none. I also factory reset/data wiped my phone and it didn't help either.
So before I call Samsung and tell them my issues for a replacement I wanted to try installing the Factory TAR via Odin to see if that might fix it since I guess factory reset may not really touch any corrupt modem/radio files really.
I know that on the Note 3 it didn't trip it, but I was wondering if someone has had the chance to do this yet on ours to see if it tripped it?
I might call Best Buy and tell them my problem and see if they will switch it out for me even though I am out of the 14 day return window. I really don't want to send it back to Samsung and wait a week or more for a new phone.
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Click to collapse
I don't see why it should you are not flashing a custom Rom just the original firmware stock. Your KNOX is in tact now your not rooted your good to go:good:

don't quote me, but I think Knox is tripped when change to a custom recovery, which is what is needed to install a custom rom.
Unless you're rooted, you should be fine. If you are, you've probably already tripped it.

flashing stock tar
Did that fix your LTE issues? Im having the same issue.

slickdaddy96 said:
I'm having issues with my phone reverting to 3G after only being on LTE for a minute no matter how good of a signal of LTE I have. This just started today, and I have refreshed the profile, prl. I had the Sprint people remotely update my phone, and they also checked for issues in my area and there are none. I also factory reset/data wiped my phone and it didn't help either.
So before I call Samsung and tell them my issues for a replacement I wanted to try installing the Factory TAR via Odin to see if that might fix it since I guess factory reset may not really touch any corrupt modem/radio files really.
I know that on the Note 3 it didn't trip it, but I was wondering if someone has had the chance to do this yet on ours to see if it tripped it?
I might call Best Buy and tell them my problem and see if they will switch it out for me even though I am out of the 14 day return window. I really don't want to send it back to Samsung and wait a week or more for a new phone.
Click to expand...
Click to collapse
Nothing you can do will fix the LTE issue. Sprint says it is a Samsung issue with the phones radio firmware and Samsung says it is an issue with the their towers not connecting to the phone properly. I am on my second note 4 with the same issue after Sprint swapped with me. On second phone I went around with them for a week. Finally got to talk to an advanced tech supervisor and he said according to some log only he and others at his level has access to Samsung has said that some Note 4 phones had been flashed improperly. Note by flashing I mean the use of JTAG equipment not some OTA or USB thing we can do. So Sprint advised me to contact Samsung about sending the phone in to be reflashed.
So begins my third week playing phone tag and on hold for 30+ minutes at a time. Finally Samsung admits there maybe an issue with the phone since it happens all over the DFW metroplex. So they tell me to send it in. I ask what the turn around is since it is my only phone and I can't be without it for 2+ weeks. So the Samsung says "I see you are in the Dallas area, just a moment" puts me on hold for another ten minutes. Comes back saying I will email you a service ticket you can print out and then carry it to our service center in east Plano.
So I did that, had to leave the phone with them for 2.5 hours. Went back and they said there is nothing wrong with the phone and that it was reflashed per Samsungs support request. Tested on my way home and got 30's near the repair facility, then down to 10's and singles. About half way to Carrollton back in to the 30's, then back to the singles or lower near my apartment. Just a 1/4 mile north of my apartment I can get 50's.
So neither is willing to offer a solution or even a cause and we are stuck between them. Tomorrow I am going to the Samsung store in Frisco and asking if they can do a swap for an S5 or something. Something to prove that at least Samsung still believes the customer is always right and to keep the customer happy. I am not going to hold my breath though.
Basically one of them dropped the ball on the version of the note 4 and neither wants to take the blame or the backfire that will come from it once made public.
In my case it looks like I am stuck with 20 more payments on a defective phone unless the Samsung store is willing to do something.

Edge / GSM only, hardly 3G/LTE possible

Hey,
since a few days, I'm not able to access 3G/LTE anymore in Germany with European G4 H815. Bootloader is unlocked (so no warranty for me).
I already reflashed it with KDZ with CSE flash, also tried to enable/reflash LTE Bands described here:
http://forum.xda-developers.com/g4/general/guide-enabling-lte-bands-t3137818
2G/GSM/Edge is possible, not more. Forcing the network to use 3G only results in no connection to the network.
Tried also swapping SIM cards with my GFs smartphone, her SIM card can also only get GSM in my G4, my SIM card can easily get H+ on her smartphone.
May this be a defective modem, or maybe a software bug? I flashed Genisys Rom, now back to stock.
Help would be greatly appreciated! Any thoughts?
Kind regards

Have you tried erasing and then adding in a new APN? If it worked prior this would be a good starting place

Thanks for the answer! Yes, I tried any possible APN configuration.

On my wife's h815 I can't test this as access is denied, but your on genisys ROM so it may let you
Open the dialer and type
*#*#4636#*#*

Hey,
I tried it, but could not click Phone Info. Error message is:
This application does not work on this device.
When I first rooted the G4, I backuped all system partitions. Maybe I should try to revert them all? I already tried to restore MODEM, MODEMST1 and MODEMST2.
Or could this be dangerous?
Kind regards

Yeah same with my wife's phone, it's strange were locked out there..
Restoring those partitions shouldn't hurt anything but I'm not very familiar with this phone so can't attest to anything for sure and the wife is on holiday so I can't check her phone
When you went through apns, did you try to first erase them all completely? If not try that, then make a new one

Yeah, I've got only one APN. I also requested a new one by my provider via SMS.
I wonder if the modem itself is defective. Maybe it got fried by wireless charging, I'm using a chinese Qi-Sticker and replaced the original one.
Are you using wireless charging?

No, just a cheap dock, but as far as I know that won't fry the internals or interfere with the radio at all
The reason I keep asking if you fully erased all apns and start over is I had to do this with a 2013 motox when it switched to lollipop, for some reason all apns had to be erased and then readded to get lte/3g to work again, the phone was stuck on edge just like yours

Okay, I found out by chance today, that there is 3G/HSPA reception possible. I was standing outside 100m away from a cell tower, and had medium reception. Maybe there is a problem with the internal antenna?
Oh, and by the way, I can see LTE network here at home (but no HSPA), but don't have a LTE contract, so I can't connect to it.
Maybe next time, when you are next to a cell tower, you try it yourself?

I haven't found a solution.
LG refuses to repair to my G4 for free, but I buyed the phone at Amazon (De). I called the hotline, they cover the warranty for 2 years, so today I sent the phone in for repair.
I'll keep you updated if Amazon repairs it despite the bootloader being unlocked (I told them before).
Sorry I couldn't offer a technical solution for anyone with the same problem

This is what happened in the meantime:
I sent the phone to an Amazon Partner Service Center. They refused to repair it under warranty - Bootloader unlocked. They offered me to replace the motherboard with a new one - 283€ incl shipping
After that offer, I called Amazon that their partner would not repair the phone under warranty.
They then sent me a brand new G4 for free! After I already had received the new unit from Amazon, of course I had to send back the defective G4 (when it came 10 days later from the repair service).

My friend has exactly the same problem.
Bootloader is unlocked. Tried to go back to stock MM 20c firmware from Imperium v1 Rom, but that didn't work. Also no update to 20d is offered by LG. If i force to use 3G, the phone can't connect to the cell network. Only edge does work. APN looks also good. Furthermore i tried to flash a new/other modem, but that didn't work also :/
Does someone have any suggestions to fix this problem?
@t000x: Was unlocked bootloader and therefore no warranty no problem for amazon.de?

Hi hasenbolle,
try restoring the firmware first, before shipping it back:
http://forum.xda-developers.com/g4/general/guide-lg-g4-stock-firmware-to-stock-kdz-t3107848
Yes, Amazon gave me a new unit despite the bootloader being unlocked.
But first I had to send it to their partner service Center and wait a few days.
Good luck with that phone.

Rooting question (not technical)

I have a question about rooting the Nexus 5G or any Nexus phone. I thought I read somewhere that the upside to getting a nexus phone was that they (Google) did not object to rooting a phone or running a custom ROM (?), versus lets say a Samsung Galaxy S6, where the manufacturer and the service provider lock them down and make it very difficult to root.
Is there any truth to this?

psycdoc said:
I have a question about rooting the Nexus 5G or any Nexus phone. I thought I read somewhere that the upside to getting a nexus phone was that they (Google) did not object to rooting a phone or running a custom ROM (?), versus lets say a Samsung Galaxy S6, where the manufacturer and the service provider lock them down and make it very difficult to root.
Is there any truth to this?
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Click to collapse
Correct... Google will rma your phone as long as you send it back in running stock firmware (as long as you flash the factory image and relock the bootloader before returning assuming you have a valid rma). Other manufacturers may not warranty the phone if the knox counter (triggered after unlocking the bootloader is present).
Sent from my Nexus 5X using Tapatalk

I can confirm that google does indeed take a phone back if it is rooted. Youre warranty is not void if youre bootloader is unlocked and is rooted. I did it with a nexus 5 and i also contacted customer support before purchasing my 5x to confirm that this policy is still around

Sent my unlocked Note 4 in to Samsung, PBA replaced, will it still be unlocked?

Hi Everyone,
As the title says, I sent my SM-N910A to get the crashing/restarting/hanging/lag/restarting issue fixed. I was using a partial wakelock app the last few months and it fixed most of the problems, but the phone kept on lagging more and more, so I decided to send it in while it was still under warranty.
I looked at the info provided on the RMA portal of Samsung's website, they said that " SOLUTION: Replaced Cosmetic - Replaced Component - Replaced PBA".
From my understanding, IMEI is the same, but what I'm worried now is that my phone is going to be re-locked to AT&T, which isn't fun as I don't even have an AT&T SIM card or account, so I don't know how I'd go about getting it unlocked.
Has anyone else sent their unlocked SM-N910A to Samsung and got it back locked to AT&T? If so, what did you do to resolve it?
Thanks

I'd Contact Samsung support first thing in the morning and ask. They are usually great to work with....

dan0430 said:
Hi Everyone,
As the title says, I sent my SM-N910A to get the crashing/restarting/hanging/lag/restarting issue fixed. I was using a partial wakelock app the last few months and it fixed most of the problems, but the phone kept on lagging more and more, so I decided to send it in while it was still under warranty.
I looked at the info provided on the RMA portal of Samsung's website, they said that " SOLUTION: Replaced Cosmetic - Replaced Component - Replaced PBA".
From my understanding, IMEI is the same, but what I'm worried now is that my phone is going to be re-locked to AT&T, which isn't fun as I don't even have an AT&T SIM card or account, so I don't know how I'd go about getting it unlocked.
Has anyone else sent their unlocked SM-N910A to Samsung and got it back locked to AT&T? If so, what did you do to resolve it?
Thanks
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Click to collapse
I have an att note 4.
Once the phone is unlocked, the phone remains unlocked it should NOT reset.
If you've rooted the phone (which there's no root for att note 4) that can be reset, bc rom they flash is usually not rooted.
This is my understanding, experiences will differ. Please do followup with your experience once you get your phone back.
Good luck.

Shanghai.Knight said:
I'd Contact Samsung support first thing in the morning and ask. They are usually great to work with....
Click to expand...
Click to collapse
I would, except for the fact they said that they've never heard of my issue, that updating the software/uninstalling apps will fix it, thought a wakelock was equal to rooting (even though you can't root the AT&T version), etc. Since this I've had little faith in them aside from the actual people doing the repairs at RSI...
kparikh82276 said:
I have an att note 4.
Once the phone is unlocked, the phone remains unlocked it should NOT reset.
If you've rooted the phone (which there's no root for att note 4) that can be reset, bc rom they flash is usually not rooted.
This is my understanding, experiences will differ. Please do followup with your experience once you get your phone back.
Good luck.
Click to expand...
Click to collapse
I know the unlock wouldn't reset normally, but I'm assuming if you replace the PBA, that includes the baseband processor, which in turn would result in a different IMEI, which in turn would be re-locked to AT&T. I don't think you can replace the components and assign the same IMEI to the device.
I know this is a question for Samsung, but when you email "tech support" and they tell you that if the processor is bad, they'll just replace the processor (you know, the one that's soldered on the PBA) I start to get a little low in confidence...

An update for everyone who was curious:
I got my device back, several components were replaced, and the phone basically looks brand new, even though I had taken good care of it.
Now, the IMEI of my device is the same, which confuses me even more, especially when I powered it on with my non-AT&T SIM card installed and was prompted for the unlock code.
Thankfully, I was able to reach out to the person I bought it from (new & unlocked) on eBay, and he provided me with the code, and it worked flawlessly. The best part of all of this is I'm on Marshmallow now, and notice several improvements (and like it more aesthetically). The RMA was straightforward with RSI (Samsung's partner) and I've got a non-wakelocking device once again.

i sent my unlocked AT&T Note 4 in last month to replace the rear camera (focus problems)
under warranty and they broke the LCD while taking it apart so i got a new LCD too. it was still unlocked
when i got it back.