Develop Bugs

Phone will not go into download mode [fixed] (now it won't power off)

hello,
i have a brand new Koodo T989D.
I have Kies, samsung drivers and odin installed. I have rooted phones in the past but something is up with this one. It will not go into download mode. volume up+down with power key won't work, powered off volume up+down then connect via USB doesn't work, tried all combinations for t989D.. it seems strange. Odin does recognize the phone (it says connected), but the phone is ON and running OS (with debugging mode)....
everything else works fine though through kies etc.

Isn't it hold volume down and home key and power?
Sent from my GT-I9305 using xda app-developers app

Obagleyfreer said:
Isn't it hold volume down and home key and power?
Sent from my GT-I9305 using xda app-developers app
Click to expand...
Click to collapse
doesn't work, tried all the combos for past 30 minutes..
is it possible its hardware locked?

lolatyou1 said:
doesn't work, tried all the combos for past 30 minutes..
is it possible its hardware locked?
Click to expand...
Click to collapse
try volume down + power only that's the only way it work on my Telus T898

How to enter recovery/download with a Koodo T989D
I have the exact same phone as you from Koodo and have been able to access recovery/download mode on the phone via button combos straight out of the box.
For RECOVERY MODE the exact button combination for the Koodo T989D is:
Press and hold the "volume up + volume down" buttons, while holding the volume keys press and hold the "power button" until the phone vibrates/screen turns on to the Samsung logo and let go of 'only' the power button. The phone should then display the recovery system image and load to the recovery start up screen.
For DOWNLOAD MODE the exact button combination for the Koodo T989D is:
(As a precautionary, take out your battery and place it back in)
While phone is off, connect the USB to your phone making sure the USB cable is attached directly to a powered USB port (if on a desktop PC, the main USB ports on the motherboard I/O is the safest way to go). Now, press and hold 'only' the "volume down" button. While holding it, press the "power button" until you feel the phone vibrate/screen turn on and let go of 'only' the '"power button". Keep holding on to the "volume down" button until a "warning screen" appears. Once it displays, press the "volume up" button and you should now be in 'Download mode'
Hope that helps you are anyone else who was curious about getting in to recovery/download modes for our KOODO T989D. Good luck!

thank you all
interesting, got it to work after enabling debugging mode..
rooted and unlocked (thanks to owl74 method) but whenever I press power button and select reboot option, it freezes and the bottom buttons stay lighted.. i have to pull battery or long press power button.. it does shut down and power back on but reboot option makes it freeze:silly:
UPDATE: Phone won't turn off even when selecting power off option, it seems to say on with screen black and buttons lighted up.. have to resort to battery pulls

lolatyou1 said:
interesting, got it to work after enabling debugging mode..
rooted and unlocked (thanks to owl74 method) but whenever I press power button and select reboot option, it freezes and the bottom buttons stay lighted.. i have to pull battery or long press power button.. it does shut down and power back on but reboot option makes it freeze:silly:
Click to expand...
Click to collapse
Is this happening with the stock Koodo ROM? Go in to your recovery and do a factoryreset/wipe data, also wipe your cache. Let us know if the issue still occurs.

FineTalent said:
Is this happening with the stock Koodo ROM? Go in to your recovery and do a factoryreset/wipe data, also wipe your cache. Let us know if the issue still occurs.
Click to expand...
Click to collapse
yup all stock
factory reset, wiped data and cache and still stuck

lolatyou1 said:
yup all stock
factory reset, wiped data and cache and still stuck
Click to expand...
Click to collapse
Please go to this link and download the files under "Koodo T989D TLLG2". Once you finish downloading the files, follow the instructions in the OP on how to re-flash the stock Koodo ROM. That will definitely help you with the issue you are experiencing. Good luck!

FineTalent said:
Please go to this link and download the files under "Koodo T989D TLLG2". Once you finish downloading the files, follow the instructions in the OP on how to re-flash the stock Koodo ROM. That will definitely help you with the issue you are experiencing. Good luck!
Click to expand...
Click to collapse
it still won't close or reboot
now im freaking out
UPDATED: tried it again and its FINE now, Thanks
Root is gone but unlock is still there works with Rogers.

How do I boot to recovery without adb?

Does anybody know what the button combo is to boot into recovery? I'm able to successfully able to boot in by using "adb reboot recovery", but trying all combinations of the power and volume buttons won't boot into recovery mode and will just boot the phone normally. Does anybody have any suggestions?

Someone posted in another thread, but Iirc it was like turn the phone off, the press volume up and plug in the USB or something like that.. Maybe it was power down, try both

mikeandjaimie said:
Someone posted in another thread, but Iirc it was like turn the phone off, the press volume up and plug in the USB or something like that.. Maybe it was power down, try both
Click to expand...
Click to collapse
Yeah that worked. USB + up boots recovery and USB + down boots to bootloader.

ThatGuy94 said:
Yeah that worked. USB + up boots recovery and USB + down boots to bootloader.
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Click to collapse
I was trying to figure this out myself. Thanks for posting. It's the first phone I've had with this combo. Strange.... I guess this means we have to lug a cable around everywhere.

I've tried to use Vol Up + USB bout no dice in my Razer Phone, may that be connected to carrier firmware as I have Three UK one?

darknetcs said:
I've tried to use Vol Up + USB bout no dice in my Razer Phone, may that be connected to carrier firmware as I have Three UK one?
Click to expand...
Click to collapse
If it's unlocked, it shouldn't matter what carrier you're on (I'm on T-Mobile in the US and bought it carrier unlocked). Make sure the phone is plugged in first then turn it off. Once it's off, press the volume up and it should begin to boot into recovery.

ThatGuy94 said:
If it's unlocked, it shouldn't matter what carrier you're on (I'm on T-Mobile in the US and bought it carrier unlocked). Make sure the phone is plugged in first then turn it off. Once it's off, press the volume up and it should begin to boot into recovery.
Click to expand...
Click to collapse
Thanks for advice, I'll give it a shot and see what's happen

v500 Stuck Bootlooping - Cant Access TWRP

Hi all,
Have a brand new (to me) v500 that i bought and was able to root, flash twrp, and flash crdroid on yesterday. Today i flashed standard AOSP but now i'm stuck in a bootloop and cant figure out how to access twrp any more. Previously with crdroid on it i was accessing the bootloader/twrp via an app. So far all i can get to come up using hardware buttons is the download mode, and ADB isn't recognizing the device.
Any advice? I tried following a guide to revert to stock using the LG Support Tool but cant find the R&D tools to complete the tutorial.
Any help is appreciated.

Bump - $10 USD to whoever can help me solve this first

To enter twrp via buttons on v500:
Press and hold Power Button + Volume Down
When the LG logo shows up, release the power button only
Now press and hold the Power and Volume Up button while keeping your hold on the Volume Down button
When the factory reset screen appears, release your hold on all buttons
Follow On Screen Indications to make factory reset, but instead you enter twrp
Sent from my Pixel 3a using Tapatalk
---------- Post added at 12:58 PM ---------- Previous post was at 12:55 PM ----------
RUGGNATION said:
Hi all,
Have a brand new (to me) v500 that i bought and was able to root, flash twrp, and flash crdroid on yesterday. Today i flashed standard AOSP but now i'm stuck in a bootloop and cant figure out how to access twrp any more. Previously with crdroid on it i was accessing the bootloader/twrp via an app. So far all i can get to come up using hardware buttons is the download mode, and ADB isn't recognizing the device.
Any advice? I tried following a guide to revert to stock using the LG Support Tool but cant find the R&D tools to complete the tutorial.
Any help is appreciated.
Click to expand...
Click to collapse
To enter twrp via buttons on v500:
Press and hold Power Button + Volume Down
When the LG logo shows up, release the power button only
Now press and hold the Power and Volume Up button while keeping your hold on the Volume Down button
When the factory reset screen appears, release your hold on all buttons
Follow On Screen Indications to make factory reset, but instead you enter twrp
Sent from my Pixel 3a using Tapatalk

RUGGNATION said:
Hi all,
(---cut---) So far all i can get to come up using hardware buttons is the download mode, and ADB isn't recognizing the device.
Any advice? I tried following a guide to revert to stock using the LG Support Tool but cant find the R&D tools to complete the tutorial.
Any help is appreciated.
Click to expand...
Click to collapse
Have you tried LG Flash Tool 2014?

b0li said:
To enter twrp via buttons on v500:
Press and hold Power Button + Volume Down
When the LG logo shows up, release the power button only
Now press and hold the Power and Volume Up button while keeping your hold on the Volume Down button
When the factory reset screen appears, release your hold on all buttons
Follow On Screen Indications to make factory reset, but instead you enter twrp
Click to expand...
Click to collapse
Using that combination of buttons doesnt bring up any menus, i see the LG logo and then either holding the power button shuts down the tablet or it tries booting into Android, which then loops.

ze7zez said:
Have you tried LG Flash Tool 2014?
Click to expand...
Click to collapse
I did but ive been unable to get it to work and/or find the right file to load into it.

RUGGNATION said:
I did but ive been unable to get it to work and/or find the right file to load into it.
Click to expand...
Click to collapse
V50020f_00.kdz
Download LG Official Stock ROM / Firmware [U.S.]
or
Enter the serial number XXXXXXXXXXXXX into the link
http://csmg.lgmobile.com:9002/csmg/b2c/client/auth_model_check2.jsp?esn=LGXXXXXXXXXXXXX
and you will receive a link to the ROM.

ze7zez said:
V50020f_00.kdz
Download LG Official Stock ROM / Firmware [U.S.]
Click to expand...
Click to collapse
Thanks for the link, so far i havent been able to get my computer to recognize the usb connection when in download mode. I'm using the OEM cable and downloaded the drivers in the LG Flash Tool thread, but no luck.

RUGGNATION said:
Using that combination of buttons doesnt bring up any menus, i see the LG logo and then either holding the power button shuts down the tablet or it tries booting into Android, which then loops.
Click to expand...
Click to collapse
b0li gave an invalid TWRP entry instruction.
Read How to enter recovery mode using key combination post #2.
In TWRP, do advanced wipe without internal storage.
Before you flash the ROM, check its checksum carefully to see if it is identical to the one on the server.

ze7zez said:
b0li gave an invalid TWRP entry instruction.
Read How to enter recovery mode using key combination post #2.
Click to expand...
Click to collapse
I tried the corrected key combination, but no menus pop up, I either hold the power and vol up/down buttons until the device turns itself off, or it boots to the Android logo and then loops.

RUGGNATION said:
I tried the corrected key combination, but no menus pop up, I either hold the power and vol up/down buttons until the device turns itself off, or it boots to the Android logo and then loops.
Click to expand...
Click to collapse
It turns off because you hold 3 keys and don't release them.
You must press them simultaneously and then release them immediately.

ze7zez said:
It turns off because you hold 3 keys and don't release them.
You must press them simultaneously and then release them immediately.
Click to expand...
Click to collapse
That did the trick, can't believe it was just because i wasn't pressing the keys exactly right. I was able to get back into TWRP and reflash the ROM so now everything is working. Still having trouble getting usb to recognize the device, so i can't flash anything else on there at the moment.
PM me your paypal or venmo

RUGGNATION said:
Still having trouble getting usb to recognize the device, so i can't flash anything else on there at the moment.
Click to expand...
Click to collapse
Perhaps the problem is not the usb socket or cable.
Blow out the socket with compressed air and try again.
If that doesn't work, then your OS may be a problem.
In this case, try [LIVE-ISO][FWUL]adb/fastboot without any installation and driver issues.

I tried another computer too, same result - the tablet recognizes the connection so it starts charging, and despite the USB settings in dev options being set for MTP, it doesn't connect.
I'll try your link later, but it seems like its a problem with the tablet compared to computer.

RUGGNATION said:
I tried the corrected key combination, but no menus pop up, I either hold the power and vol up/down buttons until the device turns itself off, or it boots to the Android logo and then loops.
Click to expand...
Click to collapse
You can always transfer data using microSD or via WiFi tethering.
If via WiFi, I recommend the SwiFTP server - simple and reliable.

I tried to update Lineage and am running into an issue now where as soon as the LG logo pops up, a message that says "Secure booting error! Cause: boot certification verify" pops up almost immediately so I can't use the hardware buttons to get into TWRP. Any ideas around this one? Thanks again all!

Samsung Galaxy A50 Issue after Update

Hey People,
maybe someone of you can help me.
I made a normal Update of my Phone 5 days ago after the Update my Phone went off and now it shows a Blue Screen with the Information that something went wrong while the Update.
I tried to repair it with the Smart Switch Pc Software but it don't worked.
I gave it to the store where i bought it but they want that i pay for the fix. Honestly i didn't tried to root it because i needed it for work.
Had someone that issue and can help me how i can fix that by myself?
Kind Regards
Saint

yes you probably can fix it easy
connect your phone to a pc with the usb cable
hold vol- and power to force the phone to reboot.
when the phone shut down, rapidly hold vol+ and vol- .the phone should enter download mode
use odin software to upload the latest firmware of your phone

download mode
yamen_tn said:
yes you probably can fix it easy
connect your phone to a pc with the usb cable
hold vol- and power to force the phone to reboot.
when the phone shut down, rapidly hold vol+ and vol- .the phone should enter download mode
use odin software to upload the latest firmware of your phone
Click to expand...
Click to collapse
I am trying that on my A505UI and it only puts me in SAFE MODE.

fototakerWNY said:
I am trying that on my A505UI and it only puts me in SAFE MODE.
Click to expand...
Click to collapse
That's because only the first part is needed. Just turn off your phone normally and then turn it on simultaneously pressing Volume Down and Power.

It finally worked after....
pripyaat said:
That's because only the first part is needed. Just turn off your phone normally and then turn it on simultaneously pressing Volume Down and Power.
Click to expand...
Click to collapse
Thanks for your reply. I did as you suggested but that gave me a normal boot. I tried as someone else suggested, pressing power+UP volume and that did finally get me to recovery mode! Played around with that for half hour
Thanks again! Now if only can get the transfer working in OTG!!!

yamen_tn said:
yes you probably can fix it easy
connect your phone to a pc with the usb cable
hold vol- and power to force the phone to reboot.
when the phone shut down, rapidly hold vol+ and vol- .the phone should enter download mode
use odin software to upload the latest firmware of your phone
Click to expand...
Click to collapse
Hey that worked for me Thank you

"Recovery Mode" for "Clear Cache", etc.

Has anyone figured out yet how we're going to get into "Recovery Mode" now with the "Bixby Button" missing? I used to "Clear Cache" weekly and thought of it this morning... don't dare experiment and "Brick" a brand new phone - hoping someone with insider info had some data on the subject? Thanks in advance!!!

Power off, then power the phone on while holding volume up and power (bixby) button together

paulrgod said:
Power off, then power the phone on while holding volume up and power (bixby) button together
Click to expand...
Click to collapse
Thank you very much Sir, it worked... :good: I hope you don't mind, I shared it over on Android Forums because I had asked over there also??? (and gave you and XDA Credit of course)

No, not at all. I only knew after having Note 10 with same combo! Happy to help!

paulrgod said:
Power off, then power the phone on while holding volume up and power (bixby) button together
Click to expand...
Click to collapse
after september update wont work that method anymore on sm-n9860, any Idea?

Ardianow83 said:
after september update wont work that method anymore on sm-n9860, any Idea?
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Click to collapse
funny i couldn't get it working either....but connected to computer to get into download mode. that works.... then i tried to get into recovery and it worked
so keep fiddling with it

edwardob said:
funny i couldn't get it working either....but connected to computer to get into download mode. that works.... then i tried to get into recovery and it worked
so keep fiddling with it
Click to expand...
Click to collapse
yeah i tried and worked perfectly, thnx so much

Volume up and power button still works for me after September update on unlocked.
Sent from my SM-N986U1 using Tapatalk

clownin72 said:
Volume up and power button still works for me after September update on unlocked.
Click to expand...
Click to collapse
Also works on Sm-n986b [Exynos] bit not on 9860 SD, it works only if you plug on pc via USB, it may be a Bug

Power off phone wait few seconds hold both power and up value button same time for 10 seconds. Bam your in recovery mode. Worked for me N20U1 Unlock Snapedagon chip.

Hello guys
Im in the same situation, i cannot boot anymore in the stock Recovery mode.
I booted one before, then i changed CSC with Samkey and i flashed lastest unbranded firmware with Odin. All the processes were successful without problems but the combination Volume Up + Power doesn't work anymore, i tried every combinations.
After booted up normally despite holding the Recovery combination keys, in the homescreen a grey pop up say to me: [PDP] Back-up file detected.
My Note is an SM-N986N - Snapdragon
Any suggest ?
Thanks

You must connect to pc with usb cable and then try

Same here! HK version N9860
Haven't test on it via USB to PC

after update to android 11, the phone must connect usb-C to either pc or ear phone, then power n vol up.

I confirm last statement. I've updated to Android 11 and spent more than 20 minutes trying to go to both recovery and download mode. Only way i managed with by plugging in my earphones... thank you seanmcs

Didn't work for me in first place. holding power (bixby) + volume up just restarted my device. i connected the phone with PC and tried same thing and it worked.
I am using note 20 Ultra (Exynos version) with One UI 3.0