diagnostic mode on Galaxy-A3 2017? - Samsung Galaxy A3, A5, A7 (2017) Questions & Answe

Hi
Is it possible to get the Galaxy-A3 2017 into diagnostic mode?
Have tried through ADB and codes through the dialer but it is not entering diag mode.

Related

Diagnostic Mode code?

Does anyone know what the code to get into the diagnostic screen of the i515 is?
I can access boot information by pressing down the volume rocker keys, and pressing power, and I can also go into testing mode by entering *#*#4636#*#* into the dialer, but none can help me set up a diag port for use with apps like QPST, etc. Anyone have any info on this?
Hi,
Anyone found out about the diag mode?
There is no diag mode. Only the code he mentioned above.
Does it install any usb modem?, I mean if we can use some kind of hardware virtual serial port.
same as in motorola programming work. This phone need to be researched.
stevestone said:
Does it install any usb modem?, I mean if we can use some kind of hardware virtual serial port.
same as in motorola programming work. This phone need to be researched.
Click to expand...
Click to collapse
Yes, something should be there to put this phone in DIAG mode.......

Please check something

Hello, friends.
Can you test something on your devices?
I am sure that using "adb reboot oem-2" or "adb reboot emergency" you can put phone into qdload mode (05c6:9008).
But I examined source code and I see that you can do "adb reboot oem-3" or "adb reboot diag" and put your phone into qualcomm diagnostic mode (05c6:9006) and this appear on PC as "Qualcomm MMC Storage". This is exactly that I want to do with my bricked Kindle Fire HDX (thor). At this moment I can boot only in 9008. Assuming similar architecture, if I right and you can put device straight to "diag" we could generate original partition.xml to continue my debricking work. btw if it is works you , guys, can root fire phone with any firmware with dd'ing prerooted system.
Exit from diagmode exec by loooooong pressing power button.
Thank you.
Please do not do anything if you're not power user!!!
Do not format any drives - you can hardbrick your device if it works! Just check!​
Thanks, will try it tomorrow!
with "adb reboot oem-3"
it boots to bootmode 1
like normal fasboot
no flashing
FAILED (remote: boot not allowed for locked hw)
same for reboot diag
with "adb reboot oem-2"
i get Qualcomm HS-USB QDLoader 9008
But no access with fastboot trying
fastboot -i 0x1949 boot boot.img
edit
adb oem-2 puts it in download mode
playing around with Qualcom QPST tells me
phone in dowload mode
That is just an analogue "adb reboot bootloader"?
Very strange. Too bad. Ok, thanks anyway. I think the topic can be closed.
adb oem-2
Gives me qcom download mode not fastboot mode.
Screen is compled black and device is Detected as
Qualcomm HS-USB QDLoader 9008
I see. I know this mode very good. But at this moment it totally useless. I thought that oem-3 might help, I hoped that this will turn device into qualcomm diagnostic.
Though get a such gift from Amazon would be too unbelievable )
I've bricked my Fire Phone, now it's only going to Qualcomm 9008 EDL Mode.
I need a QCN Backup from a working Fire Phone now
How can I make full dump (.qcn) from a working Fire Phone ?
adb reboot oem-2
Boots into Qualcomm HS-USB QDLoader 9008 mode
Backup in QFIL not available
QPST -> Phone state: Download
QPST Software Download -> Backup -> Port does not contain a Phone Diagnostics Mode
adb reboot oem-3
Boots into an Amazon Bootloader [Fastboot]
recognized as Lenovo ADB Device in Device Manager

Diag mode

I need to enter in diag mode to use CDMATools. I didn't find any metod for this phone. Can you help me?
When your phone is power on it is already in diag mode I think, but I am not expert

Engineer mode menu?

Is there an engineer mode for oneplus 7t? *#808# does nothing.

Oneplus somewhat bricked after attempted root, MSM doesn't notice it

My global version oneplus 7t is either locked in a fastboot loop or enters the qualcomm crashdump mode. This happened after I flashed magisk_patched.img and fastboot rebooted following this guide. When I try to use msm download tool 4., the device doesn't show up in the tool even though it does actually show up as Qualcomm HS-USB Diagonistics 900E (COM3). I have all drivers downloaded and i've wiped the phone already, so i'm just wondering how i might get msm download tool to work, or if there are any other solutions I can do. I can enter fastboot mode when I want but when I try booting normally it goes to the unlocked bootloader mode and then to the qualcomm crashdump mode.
a unneccessarily longname said:
My global version oneplus 7t is either locked in a fastboot loop or enters the qualcomm crashdump mode. This happened after I flashed magisk_patched.img and fastboot rebooted following this guide. When I try to use msm download tool 4., the device doesn't show up in the tool even though it does actually show up as Qualcomm HS-USB Diagonistics 900E (COM3). I have all drivers downloaded and i've wiped the phone already, so i'm just wondering how i might get msm download tool to work, or if there are any other solutions I can do. I can enter fastboot mode when I want but when I try booting normally it goes to the unlocked bootloader mode and then to the qualcomm crashdump mode.
Click to expand...
Click to collapse
It just says “connected" and then u click start to initiate the flash. U have to be completely off and hold down vol+ and vol- and then plug in usbc to usba cable into phone to enter "edl" mode. U can also try "fastboot reboot edl" while connected in fastboot mode to enter "edl" without using buttons (also msmtool must be specific for TMobile or superboy's patched msmtool and already running in admin mode before cable connection)

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