Related
Samsung Vibrant Download Mode
Method 1 (without ADB):
1. Take out battery, put it back in. (to turn the phone fully off)
2. Don't turn it the phone on!
3. Plug the phone into your PC, do not hit the power button!
4. See if the phone shows anything on the screen (screen turns on when plugged in) EX: Shows a battery, shows error messages if bricked, etc. Shows anything.
IF the phone screen does 'turn on' after being plugged in without you hitting the power button, so far so good.
5. Now while it's on like this, hold both the volume up and volume down buttons.
6. Hold the power button as well as the volume buttons until the screen goes black.
7. As soon as the screen goes black, let go of the power button! But DON'T let go of the volume buttons!
This is how I got into download mode to fix my 'odd' brick.
Method 2 (with ADB):
1. Turn your phone on
2. Go to Settings -> Application Settings
3. Enable Debug Mode
4. Plug your phone into your PC
5. Install Android SDK
6. Open Command Prompt
7. Type: cd C:\android-sdk-windows\tools
8. Type: adb reboot download
Either of these methods *should* get you into Download mode. After that you should be able to use Odin to revert to stock, tar and instructions here:
http://forum.xda-developers.com/showthread.php?t=734475
Or flash anything with Odin.
I am in a situation where I rooted my phone but never made a recovery and now I did a factory reset and I only get a force close loop when booting and cannot do anything. I am not able to get into debugging mode to use ADB and the hardware buttons are not working any suggestions on how I can fix this
The only thing i did was remove some bloatware which is why I did not do a recovery since I wasnt removing anything important. Phone worked fine until I tried to do the factory reset now everything just force closes and cannot do anything
I turned my phone on then removed battey. hold vol up and down together then plug the phone in via usb to pc, should enter download mode after a few seconds (don't press the power button at all)I use odin to flash back to stock.
THANKS!
This saved my ass lol I was lookin at it like wtf? cuz odin failed and then when i reloaded and tried again nothing happened so i unplugged. I don't know what I was thinking when I did it, but I did lol.
Thanks again bro
sparks.calvin said:
I am in a situation where I rooted my phone but never made a recovery and now I did a factory reset and I only get a force close loop when booting and cannot do anything. I am not able to get into debugging mode to use ADB and the hardware buttons are not working any suggestions on how I can fix this
The only thing i did was remove some bloatware which is why I did not do a recovery since I wasnt removing anything important. Phone worked fine until I tried to do the factory reset now everything just force closes and cannot do anything
Click to expand...
Click to collapse
just Odin back to stock and start over there is realy no other way to fix fc
OP: what youre doing in your hardware button combinajtion method is lettinf it boot, then pressing the up+down vol and doing a hardware reset (by holding power key). You can cut oout a step by holding tthe up down keys when you plug in. It should boot to download automatically.
Also, you should mention in your post that the button combination is different for people who flashed gingerbread bootloaders..
Another thing, i believe the newer android sdk moved the adb package to C:/android-sdk/platform-tools/ ..
To tthe person with the force close issue, read the OP, go into download mode and use odin to flash to stock.
Sent from my SGH-T959 using XDA App
Hello to all of you!
My Tattoo has gone crazy lately...he deleted all my contacts, pictures and reset the settings...all when I switched it off and then turned it on. Ok I survived...
But yesterday when I turned my Tattoo on...he was stuck on the Tattoo screen and it was restarting itself on and on again...with no luck...then I pressed the buttons for hard reset, then the picture of the yellow exclamation mark appeared, and now I'm stuck with this Android System Recovery-which it's not working, I can't select anything, none of the buttons works...What Can I DO???? I have never made no changes to my tattoo, so it's not rooted or anything.
the system recovery says:
Android System Recovery
Use trackball to highlight;
click to select.
reboot system now [Home+back]
apply sdcard:update.zip
wipe data/factory reset
wipe cache partition
___________________
E:Can't open /cache/recovery/command
Could someone tell me what to do now...please
Please someone?? I really don't know what to do!! I need my phone! PLEASE
Try downloading stock ROM from here http://htcpedia.com/official_rom_htc_wwe_for_htc_click_tatoo/soft/htc-tattoo-rom/download.html
Then try installing this ROM from Windows...I thing that you need to have htc sync also...
Thank you for helping me, I really appreciate it.
But that's the problem, my pc won't recognize the phone, I have installed the htc sync but when I insert the phone from usb nothing happens. and i can't go into the phone to check if usb debug is on or off. I also tried with adb but it says device not found....so I think there's nothing I can do...
Leegirl said:
reboot system now [Home+back]
apply sdcard:update.zip
wipe data/factory reset
wipe cache partition
Click to expand...
Click to collapse
Can you see some of these options? Did you try to download some of custom ROM and rename it to update.zip and then put it in root of sdcard and apply it? Im little confused with this....
Yes I see all of these options, but the problem is I can't select them or anything because none of te buttons work! I tried to put the ROM on the root of the sd card, but it make no sense because I cant select the option apply update.
Try Power+Home button (that is for recovery menu, but if your tattoo isnt rooted you should see only triangle with exclamation sign inside), then plug usb cable and then try installing stock ROM from post above...
With power+home button I see the recovery menu...it's just that nothing work in the recovery menu. I tried plugging the usb...the PC won't recognize it.
I told you I tried everything... I guess it's a hopless case
What about this?
To reset the phone using phone buttons
1. With the phone turned off, press and hold the HOME and BACK buttons, and then briefly press the END CALL/POWER button.
2. Press the ENTER button to begin the reset process.
Tip If your phone hangs or freezes, remove the battery then wait for a few seconds, and then re-install it. After re-installing the battery, turn on the phone.
This one is the same but has a pic of tattoo...
http://www.howtoreset.com/HTC_Units/HTC_Tattoo_Hard_Reset_Soft_Reset.html
ha...this was my first try...unsuccsessful...it's like he can't do nothing else-just showing the triangle with exclamation mark and if I press home and power goes into recovery which doesn't work....that's all he can do..
F*uck i'm all out of ideas...
Yeah...don't tell me...
Leegirl said:
Thank you for helping me, I really appreciate it.
But that's the problem, my pc won't recognize the phone, I have installed the htc sync but when I insert the phone from usb nothing happens. and i can't go into the phone to check if usb debug is on or off. I also tried with adb but it says device not found....so I think there's nothing I can do...
Click to expand...
Click to collapse
Here is what you can do:
After you started RUU wait until you get the prompt to proceed or until you get the usb error and don't close the application
Go to temp folder to get the rom.zip file
to go to temp folder type %TEMP% in the run command bar
copy the rom.zip to your favourite place and rename it to CLICIMG.zip
Now you can close the RUU install
place CLICIMG.zip in root of memory CARD and turnoff your phone
Boot in to HBOOT mode (power button + volume down keys)
wait for few seconds and install would start
I hope you have a memory card reader to place the file in to it
key for this to work is, you need to have right Tattoo RUU to get ROM.zip or have a goldcard to work any Tattoo RUU derived ROM.zip
True, i forgot about that
Thank you fo helping me. I tried but it doesn't work. The volume keys won't work...
can you check if you could boot to fastboot mode (hold both power button and back button)
From there you can
either reset your phone (menu button)
reboot to HBOOT (action button - centre button)
change to HBOOT (volume down button) - l know it doesn't work for you
or turn off the phone (left button)
If none of the buttons work, then you might need to send your phone to the doctor
Nope...it doesn't work....not to the doctor i will send the phone to the trash...
Okay so I seem to have run into a little problem I was planning on updating cleanrom up to 1.2.5 but was on cwm. I had managed to switch over successfully to twrp 2.2.0. I went ahead and used goo manager to download the updated zip of 2.2.1 and tried flashing it thru twrp. Now I am stuck in google bootloop and cant get into recovery or more importantly bootloader. I have been trying last 30mins to hold power and both volume buttons but it either keeps rebooting back to the google screen or not doing anything at all just have to repress to to turn it off but it will turn back on automatically. I tried hooking it up to my usb and labtop but it looks like it wont even recognize it. I just fully charged it so I am good for now just a little worried cant get out of this mess.
I ran into a problem like that with clockwork recovery it kept on rebooting in recovery but I could still go into download mode I was at work away from my computer so I had no choice but to keep trying that three button magic until it finally restored a backup I had on my external card.just keep on trying to pull the battery then try to go into recovery. You might 've gotten a bad download
Sent from my SGH-T999 using xda premium
problem is I cant get into recovery. or the green screen to get to bootloader. It just completely stuck in a bootloop on the google screen mocking me... I am really contemplating opening it up and taking out battery but is that a good idea? Or is there anything else I can do?
so I pulled off the back cover but really dont want o disconnect the battery might mess something up but I cannot get the device to shut off.
disconnecting the battery does nothing it shuts it off and keeps it off but when I connect it to the charger the battery symbol pops up for a second and then goes completely blank. I went ahead and tried again to boot into bootloader pressing power vol up + down and all combinations of power vol -, power vol +
power turbo press vol +/- but no luck still in google screen.
If you're in a bootloop you need to connect your Nexus 7 to a computer. Then you will be able to access recovery via the Power button and volume buttons.
is it going to make a difference that everytime i try to reboot it just the black google screen? I have tried it connected to the wall charger and connected usb to the labtop but nothing.
clago87 said:
is it going to make a difference that everytime i try to reboot it just the black google screen? I have tried it connected to the wall charger and connected usb to the labtop but nothing.
Click to expand...
Click to collapse
It's supposed to do that when you're trying to go to recovery from bootloader without the USB cable plugged into a computer, may need to have the drivers installed on said computer. It's an issue with the nexus 7 bootloader and every one of them does it. What your experiencing is perfectly normal if you tried to go to recovery from bootloader with the bolume buttons and then got the google screen bootloop.
If it doesn't work when you plug it in and try, then try unplugging it, manually rebooting with it plugged in first, or vice versa
Update: I can get on Team Viewer and remotely reboot you into recovery through the PC if you want, or at least give it my best shot.
ok so i disconnected battery and have the device off. I should then try connecting it to the pc and try booting up holding down all buttons?
clago87 said:
ok so i disconnected battery and have the device off. I should then try connecting it to the pc and try booting up holding down all buttons?
Click to expand...
Click to collapse
Have you installed the right drivers on the computer you're using, for ADB and the device drivers, when you unlocked and rooted?
Answer to your question is yes try that. But I wouldn't be disconnecting and reconnecting it, I can't recommend that and then learn tomorrow that static zapped something important.
yea I am getting nothing by connecting to pc. I have all the drivers adb and fastboot installed when I rooted and unlocked couple weeks back but it looks like device is not being recognized or read at all by the pc.
connecting to the pc holding the volume + button gets it recognized for a second and tries to install a driver apx but unsuccessfully.
I am not making any progress whatsoever kinda sucks starting the weekend like this. I have gone thru some bad stuff with my atrix but nothing like this were I cant even access my bootloader boot into recovery or even fastboot. Should I try and get it to just stay off and see if overnight it works its own magic? Hate going to sleep witht his on my mind but I think with a clear mind in the morning something good will happen.
I can get it to stay off by holding both vol+ and vol- but trying to turn it off with just the power button just keeps it turning back on/off...
so I slepted on it thru the night let the tablet rest but went back this morning and I still cant get into bootloader or recovery. Is there anything I can do?
Has anyone else had this problem where they cant boot into recovery or bootloader? It's like the power button and vol keys are unresponsive even though they still work to turn on the device.
are you sure that you flashed the right recovery? but you should still be able to get the bootloader. are you pressing power + volume down(volume down, not both volume buttons. i noticed you wrote both volume buttons) to get into the bootloader?
I think I chose the right recovery the first version downloaded thru goo manager but it was the 2.2.0 version. I had the option on the of downloading the 2.2.1 zip or the .img but i downloaded the .img to just to flash with the current version of twrp that was working. There have been times were I have not been able to get into recovery on my atrix or htc but I've always been able to get into the bootloader this is the first time I've been locked out of my device kind of got me scared its not even a month old. So you say to get into bootloader you dont have to hold down both volume buttons? I will try again to power back up using the volume down and power button at same time... Wish me luck
clago87 said:
I think I chose the right recovery the first version downloaded thru goo manager but it was the 2.2.0 version. I had the option on the of downloading the 2.2.1 zip or the .img but i downloaded the .img to just to flash with the current version of twrp that was working. There have been times were I have not been able to get into recovery on my atrix or htc but I've always been able to get into the bootloader this is the first time I've been locked out of my device kind of got me scared its not even a month old. So you say to get into bootloader you dont have to hold down both volume buttons? I will try again to power back up using the volume down and power button at same time... Wish me luck
Click to expand...
Click to collapse
good luck!
yea, only power button and the volume down button.
quick question before I connect the battery does it make a difference whether or not I have it plugged in charging or connected to the PC while trying to boot into bootloader?
Hello.
I have an LG G2 802 that i managed to royally screw up last night, I was about to install the new firmware update for my phone, completely forgetting that i had a custom rom installed on it. After the firmware update was finished downloading, the phone rebooted into TWRP and would not boot normally after that, could not boot into the previous custom rom i had installed... I decided to wipe all the data, and try to use an old backup i had laying on the internal storage, got to it, wiped all data and started recovering the old backup. But the revovery wasn't working properly and it gave me an error, after fiddling around with TWRP a little more, i went into wipe -> advanced wipe -> and wiped everything, because i had an idea that i could just force a new rom over by ADB from my PC, and this all resulted in that I have no operating system, the phone boots into TWRP all the time, I've tried to hard reset it, but it just boots into TWRP whatever i do
Please help
Just flash a new KDZ over it. And next time check XDA if someone had the same problem as you and you will find the solution.
I've done a quick search about flashing a new kdz, and they involve getting into download mode, I can't access download mode, it just sends me to TWRP no matter what i do
Popps said:
Hello.
I have an LG G2 802 that i managed to royally screw up last night, I was about to install the new firmware update for my phone, completely forgetting that i had a custom rom installed on it. After the firmware update was finished downloading, the phone rebooted into TWRP and would not boot normally after that, could not boot into the previous custom rom i had installed... I decided to wipe all the data, and try to use an old backup i had laying on the internal storage, got to it, wiped all data and started recovering the old backup. But the revovery wasn't working properly and it gave me an error, after fiddling around with TWRP a little more, i went into wipe -> advanced wipe -> and wiped everything, because i had an idea that i could just force a new rom over by ADB from my PC, and this all resulted in that I have no operating system, the phone boots into TWRP all the time, I've tried to hard reset it, but it just boots into TWRP whatever i do
Please help
Click to expand...
Click to collapse
Are you able to boot into download mode?
---------- Post added at 09:42 AM ---------- Previous post was at 09:40 AM ----------
Ok Hold the power button until the phone flashes twice and then let go off the power button. When it's off, hold volume up and then connect it to USB simultaneously.
I just tried doing that, held the power off button until the LG logo flashed twice, the phone turned off, and then i held volume up button, LG logo appeared and then it just went straight into TWRP
Popps said:
I just tried doing that, held the power off button until the LG logo flashed twice, the phone turned off, and then i held volume up button, LG logo appeared and then it just went straight into TWRP
Click to expand...
Click to collapse
Ok, this time hold volume up and power button constantly while connected to USB. Report back.
Popps said:
I just tried doing that, held the power off button until the LG logo flashed twice, the phone turned off, and then i held volume up button, LG logo appeared and then it just went straight into TWRP
Click to expand...
Click to collapse
For those who have similar issues, I did the below steps:
1. While connected to computer in CWM recovery, install the drivers via PdaNet (these replace any original LG drivers)
http://forum.xda-developers.com/show....php?t=1983470
2. Connect to phone via ADB while still connected in CWM recovery (see below ADB download if you didn't already have it or forgot where it was)
http://forum.xda-developers.com/show....php?t=2317790
3. While connected via ADB you can use the same method as in the below thread (use the first one).
http://forum.xda-developers.com/show...1696&nocache=1
MK45A said:
Ok, this time hold volume up and power button constantly while connected to USB. Report back.
Click to expand...
Click to collapse
Tried it, it turns off, then the notification light at the top of the phone (beside the front camera) blinks 8 times if i constantly hold the volume up and power button, as soon as i release power button and volume up, the phone boots with the LG logo and then goes into TWRP.
Popps said:
Tried it, it turns off, then the notification light at the top of the phone (beside the front camera) blinks 8 times if i constantly hold the volume up and power button, as soon as i release power button and volume up, the phone boots with the LG logo and then goes into TWRP.
Click to expand...
Click to collapse
What he meant was, hold the Volume Up button & connect the phone to your PC. Don't have to hold power button at all. Try this mate.
Sent from my GT-I9000 using Tapatalk
robin786 said:
What he meant was, hold the Volume Up button & connect the phone to your PC. Don't have to hold power button at all. Try this mate.
Sent from my GT-I9000 using Tapatalk
Click to expand...
Click to collapse
Well, i tried this right now, the phone boots, LG logo shows, then it just goes straight into TWRP and nothing happens, i held the volume up, plugged the USB cable in (i could hear the sound in windows when you plug a device into your PC)
Popps said:
Tried it, it turns off, then the notification light at the top of the phone (beside the front camera) blinks 8 times if i constantly hold the volume up and power button, as soon as i release power button and volume up, the phone boots with the LG logo and then goes into TWRP.
Click to expand...
Click to collapse
When the notification LED starts to blink, let go of both buttons for a split second and hold them back again. Make sure USB is connected. Since you have TWRP working, Download should also be available.
---------- Post added at 02:24 PM ---------- Previous post was at 02:21 PM ----------
robin786 said:
What he meant was, hold the Volume Up button & connect the phone to your PC. Don't have to hold power button at all. Try this mate.
Sent from my GT-I9000 using Tapatalk
Click to expand...
Click to collapse
The problem is that you have to have the phone off to even attempt to get in to download mode.
MK45A said:
When the notification LED starts to blink, let go of both buttons for a split second and hold them back again. Make sure USB is connected. Since you have TWRP working, Download should also be available.
---------- Post added at 02:24 PM ---------- Previous post was at 02:21 PM ----------
The problem is that you have to have the phone off to even attempt to get in to download mode.
Click to expand...
Click to collapse
If i try to power off the phone WITH the usb cable connected to it, it just reboots automatically, so i cannot power off the phone without it rebooting all by itself, and then going into TWRP.
I tried to hold volume up and power while my phone was in TWRP and it rebooted, LG logo came up and then the red notification light started blinking, then i tried to do what you told me to, quickly release volume up and power button, while the LED was blinking, but nothing happened, other than the phone just rebooting, and then the LED started blinking red again, this just looped over and over again...
Turn it off, hold volume up and connect USB cable. Does it go to download mode?
robogo1982 said:
Turn it off, hold volume up and connect USB cable. Does it go to download mode?
Click to expand...
Click to collapse
No, the LG logo shows, then it goes into TWRP
have you tried this http://forum.xda-developers.com/showthread.php?t=2451696
Popps said:
Hello.
I have an LG G2 802 that i managed to royally screw up last night, I was about to install the new firmware update for my phone, completely forgetting that i had a custom rom installed on it. After the firmware update was finished downloading, the phone rebooted into TWRP and would not boot normally after that, could not boot into the previous custom rom i had installed... I decided to wipe all the data, and try to use an old backup i had laying on the internal storage, got to it, wiped all data and started recovering the old backup. But the revovery wasn't working properly and it gave me an error, after fiddling around with TWRP a little more, i went into wipe -> advanced wipe -> and wiped everything, because i had an idea that i could just force a new rom over by ADB from my PC, and this all resulted in that I have no operating system, the phone boots into TWRP all the time, I've tried to hard reset it, but it just boots into TWRP whatever i do
Please help
Click to expand...
Click to collapse
I had the same problem, stuck on logo lg , when i tried to go to download mode, i got stuck in the first step of it (i can't see the step with firmware update etc...) and when i tried to make a factory hard reset, it goes on the recovery mod.
After seeing many forums since 3-4 days, i tried to flash the kitkat kernel, so i used the adb sideload ---> so connected on recovery mod, then make install from sideload, then on your command (on windows) type adb sideload thenameofthekernel /sdcard/ and normally the recovery should install himself the kernel and you can reboot your phone
I still have an issue, can't access on download mode but i can use the phone as before, so if anyone can help, i listen you ^^
XxZombiePikachu said:
have you tried this http://forum.xda-developers.com/showthread.php?t=2451696
Click to expand...
Click to collapse
Just tried this, and when i turn on my phone, it only shows the LG logo, no TWRP this time, but i can't turn my phone off, it just restarts itself, and shows only the LG logo, cant get into download mode, i can get into the factory reset mode, but why would i go there when my phone doesn't have anything on it.....
Need some serious help
Popps said:
Just tried this, and when i turn on my phone, it only shows the LG logo, no TWRP this time, but i can't turn my phone off, it just restarts itself, and shows only the LG logo, cant get into download mode, i can get into the factory reset mode, but why would i go there when my phone doesn't have anything on it.....
Need some serious help
Click to expand...
Click to collapse
Hold down the power button till the it turns off and keep it held down the LG logo will flash up again then go off after that release it and wait a few seconds making sure the phone does not boot up again. Then hold down the volume up button and with the usb connected to the computer plug the USB into the phone this should then put it into download mode.
Why don't you sideload a rom in twrp recovery via adb?
twon23 said:
Hold down the power button till the it turns off and keep it held down the LG logo will flash up again then go off after that release it and wait a few seconds making sure the phone does not boot up again. Then hold down the volume up button and with the usb connected to the computer plug the USB into the phone this should then put it into download mode.
Why don't you sideload a rom in twrp recovery via adb?
Click to expand...
Click to collapse
I've already tried to get into download mode, and it doesn't let me, but now it wont even let me into TWRP, it's stuck at the LG logo, the notification light at the top is blinking in all different colors.
As i said, no download mode, now no TWRP...
Sangoku91 said:
I had the same problem, stuck on logo lg , when i tried to go to download mode, i got stuck in the first step of it (i can't see the step with firmware update etc...) and when i tried to make a factory hard reset, it goes on the recovery mod.
After seeing many forums since 3-4 days, i tried to flash the kitkat kernel, so i used the adb sideload ---> so connected on recovery mod, then make install from sideload, then on your command (on windows) type adb sideload thenameofthekernel /sdcard/ and normally the recovery should install himself the kernel and you can reboot your phone
I still have an issue, can't access on download mode but i can use the phone as before, so if anyone can help, i listen you ^^
Click to expand...
Click to collapse
I am in the same boat as you. Dont' know what to do.
When I try to boot into download mode - I see the initial screen but computer doesn't detect anything
Hey guys.. Yesterday i downloaded autorec and installed TWRP.. Today i wanted to install a custom rom.. so i read some posts and i thought that i should wipe Everything.. So i wiped even my internal storage where i had my rom .img.. then i searched on the internet and i read to shut down my phone and reboot to recovery mode.. When i did that my phone stuck in bootloop and when i try to power it down it turns itself back on.. I cant enter recovery and download mode.. PLEASE HELP FAST.. my phone is LG G2 D802
Past98 said:
Hey guys.. Yesterday i downloaded autorec and installed TWRP.. Today i wanted to install a custom rom.. so i read some posts and i thought that i should wipe Everything.. So i wiped even my internal storage where i had my rom .img.. then i searched on the internet and i read to shut down my phone and reboot to recovery mode.. When i did that my phone stuck in bootloop and when i try to power it down it turns itself back on.. I cant enter recovery and download mode.. PLEASE HELP FAST.. my phone is LG G2 D802
Click to expand...
Click to collapse
first of all - never, but never delete/wipe your internal storage...
second - and i've wrote this many times already:
to turn the device completely off
- your usb cable must be disconnected
- have the device charged for more than 50%
- press pwr button for more than 10 seconds
- at some point, LG logo will show - DO NOT LET THE PWR BUTTON OFF - KEEP IT PRESSED
- only then the device will be powered off completely with the black screen
THANK YOU!! you are awesome.. I misunderstood and i thought that i should wipe everything.. What do it do now?
Past98 said:
THANK YOU!! you are awesome.. I misunderstood and i thought that i should wipe everything.. What do it do now?
Click to expand...
Click to collapse
now you find the thread on how to transfer a rom to a device directly from twrp or adb... or how to flash KDZ stock (then reroot and go from scratch)
i've never done it because i've never messed up anything on my device (my luck) - so i don't know in details - but there are threads on this subjects...
btw one more thing i've noticed in your 1st post - you had an .img rom file
you can't flash .img in twrp - you'll need the rom .zip file...
how do i access TWRP?
search on which button combination to press to enter twrp... (but before you try the key combinations - have the device powered off completely as described above)
on my device and 20h bootloader its
- press and hold pwr button + volume down
- lg logo shows (let the buttons go for a second or less)
- quickly press and hold pwr button + volume up
that works on my device...
you probably have older bootloader (20a) so you can try
- press and hold pwr button + volume down
- lg logo shows (let the buttons go for a second or less)
- quickly press and hold pwr button + volume down again
now - if you have TWRP installed - it will show you a white screen (factory reset) with yes/or no buttons - just answer YES to all and it will boot to TWRP (you answer with volume up/down keys for selection and pwr button to confirm)
if nothing of that works - try searching for other key combos... but afaik those are the only two that exist - depending on bootloader...