Diagnostics menu on vs980 - G2 Q&A, Help & Troubleshooting

Hopefully I can get pointed to the right direction.
I'm trying to flash some prl's to my vs980, but the verizon hidden menu is useless, and I can't seem to access anything useful nor enable diagnostics mode to do any flashing. The most I found was download mode, but it seems useful only for firmware flashing. I'm open to any suggestions if I've missed anything.
Thanks

Since the verizon hidden menu is useless, does anyone know if it's possible to add a hidden menu apk from a different G2 stock rom? I'm hoping I can enable diag mode from there.

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[Q] Us cellular s4 Diag Mode

I am going nuts trying to figure this out. I got my phone into DM mode and was able to connect DFS and CDMA WS to it and then all of a sudden it no longer is able to be read. I have done just about everything I can think of to get it working including a rtn reset and clearing efs on the phone. Nothing seems to want to kick it back into a usable DM mode.....
Anyone care to help me??
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Ronhero said:
I am going nuts trying to figure this out. I got my phone into DM mode and was able to connect DFS and CDMA WS to it and then all of a sudden it no longer is able to be read. I have done just about everything I can think of to get it working including a rtn reset and clearing efs on the phone. Nothing seems to want to kick it back into a usable DM mode.....
Anyone care to help me??
Click to expand...
Click to collapse
can you share how you got it to connect diag mode in first place. i have been struggling to do that. usb debugging is on, hidden menu screen enabled but doesnt show qualcomm settings in the *#7284 screen. I did try *#0808# and it shows the qualcomm settings there however it doesnt connect to computer when changed to dm mode. thanks
Us cellular uscc galaxy s4 diagnostic mode fix
scoukjr said:
can you share how you got it to connect diag mode in first place. i have been struggling to do that. usb debugging is on, hidden menu screen enabled but doesnt show qualcomm settings in the *#7284 screen. I did try *#0808# and it shows the qualcomm settings there however it doesnt connect to computer when changed to dm mode. thanks
Click to expand...
Click to collapse
*#7284# click modem i believe (you might have to toggle to pda later)
After you do that part this is what you do.
As long as the hidden menu is enabled
press *#0808#
this will bring up a menu kinda like the s3. Under usb settings change it to
dm+modem+adb
you'll get 2 serial and modem ports. Toggle the pda and modem back and forth and it should read. *now just need someone to find the 16 digit passcode and we're all in there!
Hope this helps!
16 Digit Passwords:
USCC S3 2010031619780721
Verizon S3 2009031920090615
Sprint S3 01F2030F5F678FF9 or 2012112120131219
Sent from my SPH-L710 using xda app-developers app

[Q] Accessing Diagnostic Menu in 4.4.2

I've been trying to access the diagnostic menu (sometimes called service mode) on my S4 which has an unknown imei so I can try and rebuild it but all I ever get is a blank screen. I've tried every code I can find but the blank screen is as far as I get.
Am I missing something obvious?

Add / Unlock LTE Bands to Moto E 2015 (XT1528)

Hi.
I bought the Verizon Moto E (2015) XT1528.
I am trying to get LTE work in the Philippines and LTE bands here are different from what Verizon has enabled.
I'd like to ask if anyone has been able to add/unlock other LTE bands like the guide in the link below:
http://forum.xda-developers.com/galaxy-s5/general/how-to-add-rf-lte-frequency-bands-to-t2886059
I am having problems searching for the code the access the USB Settings menu (step 6 of the guide above):
"Open the USB settings screen on your phone. Change USB from AP to CP. And USB settings from MTP + ADB to RNDIS + DM + Modem mode (after you have finished making edits in your phone's memory, remember to revert the original settings in this screen).
This is the hardest part of this mod as the USB setting menu is usually hidden and the method to access it is slightly different on some brands. For the S5, you can open it by dialing *#0808# . Other phones may use *#7284# , *#8778# , *#*#8778#*#* , ##3424# or something else entirely. "
Any assistance would be greatly appreciated.
Thank you!
benitz8 said:
Hi.
I bought the Verizon Moto E (2015) XT1528.
I am trying to get LTE work in the Philippines and LTE bands here are different from what Verizon has enabled.
I'd like to ask if anyone has been able to add/unlock other LTE bands like the guide in the link below:
http://forum.xda-developers.com/galaxy-s5/general/how-to-add-rf-lte-frequency-bands-to-t2886059
I am having problems searching for the code the access the USB Settings menu (step 6 of the guide above):
"Open the USB settings screen on your phone. Change USB from AP to CP. And USB settings from MTP + ADB to RNDIS + DM + Modem mode (after you have finished making edits in your phone's memory, remember to revert the original settings in this screen).
This is the hardest part of this mod as the USB setting menu is usually hidden and the method to access it is slightly different on some brands. For the S5, you can open it by dialing *#0808# . Other phones may use *#7284# , *#8778# , *#*#8778#*#* , ##3424# or something else entirely. "
Any assistance would be greatly appreciated.
Thank you!
Click to expand...
Click to collapse
Check here please,
http://forum.xda-developers.com/moto-e-2015/general/how-to-verizon-moto-e-2015-gsm-network-t3098953

Suitable downgrade firmware with "Hidden meny" options available?

Hello
Wondering if anyone could give me a hint of which stock firmware I would need in order to get options in the hidden menu available and thats compatible with Samsung GT-I8730.
Currently running Android-version 4.1.2 original stock firmware.
Trying to unlock SIM, using Chimera but gets stuck at 19%, when a popup-window tells me to enable Diagnostic Mode (DM) by using *#0808# or *#9090# or *#7284# in dial window
The two first options nothing happens at all and dialing *#7284# brings me to PhoneUtil with options UART, Modem or PDA, where PDA was default but there is no USB section available.
Also I would need the *#9090# to set Diag config to USB-value.
Am new at this and would be grateful for any help I can get
Riondorx

i9502 (S4 duos) enable CP logging / enable diag mode

Hello,
I barely post anything as there is a huge amount of documentation on this forum, but I am really stuck at this and have no clue how to solve it.
I have two i9502 phones:
- one with good IMEIs and thus, working GSM, but the sensors are not working (hardware failure - sensorhub test fail + all sensors from the *#0*# menu are dead)
- one with good sensors, but one of the IMEI is null, thus GSM is not working
I am tying to clone the one with good IMEIs over the one with bad IMEIs. I have previously done this with success, but for the S4 Active model (i9525).
To do this, I need to use QPST or EFS Professional (awesome software btw) with the phone running in diag mode.
When I enable "DM+Modem+ADB" from the *#0808# menu I get "USB device not recognized" on my PC, a problem usually resolved by "Enable CP logging" from the original recovery.
The problem with this model is that "Enable CP logging" option is missing from the recovery.
Also, codes like ##DMMODE# or ##DIAG# have no effect and there is no relevant option in the service menu (*#0011#) or diag config menu (*#9090#).
Things I've tried so far:
- directly backup/restore EFS partitions using TWRP or EFS Professional
result: fail, I had both IMEIs null.
reason: Encrypted File System partitions are encrypted using the phone's certificate/key. This means the EFS backup only makes sense for the original phone.
- downgrade to android 4.4.2
result: fail, recovery menus and secret menu codes behave exactly the same.
- flash a recovery from i9500 to get the "enable CP logging"
result: fail: when I enable the option, the phone restarts and PC still not recognizes the device. This was the closest I ever got to solve this.
- downgrade to android 4.3
result: fail, cannot flash, odin gives error and the phone says something like "firmware revision 2, phone revision 3" (incompatible hardware revisions?)
Does anyone know how to enable diag mode for this model?
Important to mention that I do not have any kind of service box.
Things I am thinking of trying:
- flash MIUI and see from there. I doubt a ported rom could do anything about this.
- cook android 4.3 using dsixda's Android Kitchen, and flash using a custom recovery. I doubt this will work also. Expecting a brick
Thanks.
You ever figure out how to do this?

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