[Q] How do I enter engineering mode? - AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin

I tried the code *#*#3646633#*#* didn't work also tried MTK Engineering Mode Start but it says that it cannot find engineermode app help please

mine doesn't either, are you rooted
it also says for mediatek devices only

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[Q] [SOLVED] How to enable diag mode on SGS4 without code

Hi guys,
I have a samsung galaxy s4 with no imei label on the battery place and the screen is smashed so no way to activate the debug mode or the diag mode
The only thing I did so far to be able to read the IMEI is to boot the phone in Download mode but CDMA tools are not working as the phone is not in diag mode.
Anybody knows how can I read the IMEI of this phone? I checked this post but even getting into ADB it´s complicated as it never boots on the Recovery mode.
Thanks in advance.
Yedi
yedi1002 said:
Hi guys,
I have a samsung galaxy s4 with no imei label on the battery place and the screen is smashed so no way to activate the debug mode or the diag mode
The only thing I did so far to be able to read the IMEI is to boot the phone in Download mode but CDMA tools are not working as the phone is not in diag mode.
Anybody knows how can I read the IMEI of this phone? I checked this post but even getting into ADB it´s complicated as it never boots on the Recovery mode.
Thanks in advance.
Yedi
Click to expand...
Click to collapse
Ok, I think I know now the answer for this just in case somebody will have the same issue...
As I don't have any option to control the phone as the screen is smashed, there is no way to activate the Diag Mode (*#0808#) in order to make the CDMA tool read my IMEI.
Solution: I found on Ebay an HDMI adapter with also USB host for 10 british pounds approx. This way I should be able to use my TV as the screen with a mouse or keyboard
It's on its way, so as soon as I get it working or not I will post how it goes.
Cheers,
Yedi
Solved.
With the device I mentioned I was able to connect the phone to the TV via HDMI and also adapt a USB keyboard to be able to control it as the screen was broken.
Happy days!
Yedi

Engineer mode

Hello, anyone know how to enter the engineer mode of our zte with android 7.1, I can not even enter with the new launcher

Enable debug mode on a LG Leon LTE with broken screen

Hi guys,
I have the phone of my father in law that (I think) is a LG LTD Leon that have a broken screen which stays black when I turn on the phone.
I would like to be able to get back all the datas, like the messages etc to put them back in his new phone (a Galaxy A5) using Wondershare MobileTrans, the thing is I can't enter the pincode on the LG nor activate the debug mode for MobileTrans to work.
I read here and there (on androidphonesoft and fonepaw for instance) that you can enable the debug mode of a phone with a broken screen using ADB commands but I don't know how, so is there anyone that could help ?
Also will the ADB commands help me enter the pin code ?
Thank you in advance for your help.
Ugo.

Meizu MX4 Pro cannot enter Engineering mode

Hi;
On Meizu MX4 Pro Android 5.1.1 Flyme 6.2.0.0G, I cannot start Engineering mode using the "*#*#3646633#*#*".
After dialing this, nothing happened, it just removed the dialed number after pressing the last "*"
Already tried with Developers option disabled and enabled. Phone is rooted.
Info testing "*#*#4636#*#*" is working correctly.
Is there any other option or is there an option to unlock the access to the Engineering mode?
Is the only way to do that using the "MTK Engineering Mode" apk? Is there any advanced apk for rooted phones with this capability?
Thank you.

Can't check bootloader status

As the title suggests, I can't find a way to check my bootloader status.
I have an I9100 that I bought a couple days ago, used.
I tried the number dial one, where you dial *#*#7378423#*#* but that doesn't work.
I want to try the one where you use adb, but the down button doesn't work, thus I can't boot into fastboot mode.
I found some sites saying typing "adb reboot-bootloader/adb reboot bootloader" does that, but it just boots me back into the normal OS.
I have used Framaroot with the bottom option if that helps.
If stock then download Samsung info app from playstore. The icon is a green android
You don't need to check the status of the bootloader, or unlock it, it's "already unlocked". Fastboot is also not a thing on this device. We have download mode instead. Just install whatever you need to using download mode and Odin or Heimdall.
Edit: I see you've mentioned that the volume down button doesn't work. No idea how to boot into download mode otherwise.

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