Database Info

New to Nexus, stuck in Fastboot! Please Help!

Hey guys,
I'm brand new to the Nexus S but I'm not new to flashing/rooting etc. However I am having an issue here.
I successfully unlocked my bootloader today, and flashed CWM Recovery, rooted, and finally flashed CM7. I wanted to try Netarchy's kernel, so I installed Kernel Manager from the market and tried that way (been wanting to try out that app anyways). Well, I got an error, something about insufficient memory. The error message said I should reboot and try again.
So I rebooted.
Well now I am stuck in fastboot menu with "NO BOOT OR RECOVERY IMG" at the top of the screen.
So, I copied CWM recovery back into my AndroidSDK\Tools folder, and did
Code:
fastboot flash recovery recovery-clockwork-3.0.2.4-crespo.img
but I just keep getting
Code:
error: cannot load "recovery-clockwork-3.0.2.4-crespo.img"
I reinstalled drivers and tried again. Same error.
I double checked file name, tried renaming the recovery image file name, made sure it was in the same directory as fastboot.exe. If I do
Code:
fastboot devices
it DOES see my phone. I just can't get the recovery image to flash!
Can someone please help me???

Does your computer show the extensions of the files?
E.G. does fastboot appear as "fastboot" or "fastboot.exe" ?
And I'd recommend using 3.0.2.5 rather than 3.0.2.4. 3.0.2.4 is known to have bugs with it working. Your phone needs to be in bootloader mode in order for this command to work. http://forum.xda-developers.com/showthread.php?t=988686

Originally, just fastboot. But I changed the folder view to not hide known extensions so I could double check an make sure I hadn't named it recovery.img.img or something. Unfortunately that doesn't seem to be the issue.

matt2053 said:
Originally, just fastboot. But I changed the folder view to not hide known extensions so I could double check an make sure I hadn't named it recovery.img.img or something. Unfortunately that doesn't seem to be the issue.
Click to expand...
Click to collapse
Hm. thats where I was going towards. Try fastboot flashing the 3.0.2.5 recovery, its also weird that it says no boot img.
What kind of Nexus S do you have? 9020A, 9020T, 9023?

zephiK said:
Hm. thats where I was going towards. Try fastboot flashing the 3.0.2.5 recovery, its also weird that it says no boot img.
What kind of Nexus S do you have? 9020A, 9020T, 9023?
Click to expand...
Click to collapse
9020T
I think maybe Kernel Manager formatted those partitions, tried to flash the kernel, error, but no rollback or backup.....
Trying your link now.

matt2053 said:
9020T
I think maybe Kernel Manager formatted those partitions, tried to flash the kernel, error, but no rollback or backup.....
Click to expand...
Click to collapse
I personally flash kernels manually. I'm going to upload this bootloader, I couldn't find it on XDA anymore but its a bootloader img that was from 2.3.3. it's the I9020XXKA3 bootloader
http://www.mediafire.com/download.php?sn9fu022r88w2n7
MD5: BBA9E3926224CA5C9B4DF891F50F1A90
(verify its MD5 hash.. if you don't know how, google HashTab)
place the file in /sdk/tools/
assure your phone is in bootloader mode (with android in the back)
fastboot flash bootloader bootloader.img
what happens? BE SURE that your phone is indeed 9020T before flashing this (incase anybody else with another model attempts this)

zephiK said:
I personally flash kernels by myself. I'm going to upload this bootloader, I couldn't find it on XDA anymore but its a bootloader img that was from 2.3.3. it's the I9020XXKA3 bootloader
http://www.mediafire.com/download.php?sn9fu022r88w2n7
MD5: BBA9E3926224CA5C9B4DF891F50F1A90
(verify its MD5 hash.. if you don't know how, google HashTab)
place the file in /sdk/tools/
assure your phone is in bootloader mode (with android in the back)
fastboot flash bootloader bootloader.img
what happens? BE SURE that your phone is indeed 9020T before flashing this (incase anybody else with another model attempts this)
Click to expand...
Click to collapse
I usually flash them myself too. I was just interested in trying out the app because I've used some very cool stuff from the dev (shinzul) in my HTC Evo days.
I got the same error on the CWM 3.0.2.5.
I will try flashing the bootloader now. Thanks for taking the time.

matt2053 said:
I usually flash them myself too. I was just interested in trying out the app because I've used some very cool stuff from the dev (shinzul) in my HTC Evo days.
I got the same error on the CWM 3.0.2.5.
I will try flashing the bootloader now. Thanks for taking the time.
Click to expand...
Click to collapse
I just found it awkward that your phone said:
"NO BOOT OR RECOVERY IMG"
Click to expand...
Click to collapse
Let me know the results.
my bootloader appears as:
FASTBOOT MODE
PRODUCT NAME - HERRING
HW VERSION - REV 11
BOOTLOADER VERSION - I9020XXKA3
BASEBAND VERSION - I9020XXKB3
CARRIER INFO - TMB
SERIAL NUMBER - <removed>
LOCK STATE - UNLOCKED
and the navigational stuff
Click to expand...
Click to collapse

Hmmmmm well I got "error: cannot load 'bootloader.img'."
I'm beginning to wonder if the problem is on my PC side, with fastboot or something.

matt2053 said:
Hmmmmm well I got "error: cannot load 'bootloader.img'."
I'm beginning to wonder if the problem is on my PC side, with fastboot or something.
Click to expand...
Click to collapse
you're placing it in /sdk/tools right? The Android SDK has to be matched up with 2.3.X.
Try starting all over. Uninstall drivers for your phone. Redownload the Android SDK.
As a last resort, you can try Odin but I haven't had any experience with it on the Nexus S so I can't help you with that but if you want to try Odin thats your choice.
Part 1 will get you started: http://forum.xda-developers.com/showthread.php?t=895545
It's very possible you have a bad version of the SDK. So try this, if it doesn't work try Odin imo.

zephiK said:
you're placing it in /sdk/tools right? The Android SDK has to be matched up with 2.3.X.
Try starting all over. Uninstall drivers for your phone. Redownload the Android SDK.
As a last resort, you can try Odin but I haven't had any experience with it on the Nexus S so I can't help you with that but if you want to try Odin thats your choice.
Part 1 will get you started: http://forum.xda-developers.com/showthread.php?t=895545
It's very possible you have a bad version of the SDK. So try this, if it doesn't work try Odin imo.
Click to expand...
Click to collapse
yes that was where I placed it.
I'm reinstalling SDK and drivers. I don't think we'll need Odin. I think my fastboot was just wonky. I had installed/moved/reinstalled/uninstalled the SDK several times today trying to get the stoopid drivers installed. PDANet was the only thing that ever worked!

matt2053 said:
yes that was where I placed it.
I'm reinstalling SDK and drivers. I don't think we'll need Odin. I think my fastboot was just wonky. I had installed/moved/reinstalled/uninstalled the SDK several times today trying to get the stoopid drivers installed. PDANet was the only thing that ever worked!
Click to expand...
Click to collapse
if anything... if you have another system, you could try it on that system. you could also try it in another USB socket.
i mean, i dont think its your drivers but it doesnt hurt to see if it thats the problem.. your device was detected.
so your phone is unable to start up (get past google) and not able to get into recovery?

Holy **** I finally got it.
I had to enter the filepath and file. Derp.
Code:
fastboot flash recovery recovery-clockwork-3.0.2.4-crespo.img
^^^^^ Did Not Work ^^^^^
Code:
fastboot flash recovery c:\android\tools\recovery-clockwork-3.0.2.4-crespo.img
^^^^^ Did Work ^^^^^
Whew, I was scared there for a bit!
THANKS for your help dude!!!

matt2053 said:
Holy **** I finally got it.
I had to enter the filepath and file. Derp.
Code:
fastboot flash recovery recovery-clockwork-3.0.2.4-crespo.img
^^^^^ Did Not Work ^^^^^
Code:
fastboot flash recovery c:\android\tools\recovery-clockwork-3.0.2.4-crespo.img
^^^^^ Did Work ^^^^^
Whew, I was scared there for a bit!
THANKS for your help dude!!!
Click to expand...
Click to collapse
... WOW! i thought you knew that.
if you want the first command to work you have to do:
cd C:\android\tools\
fastboot flash recovery recovery.. blah blah blah
Click to expand...
Click to collapse
but congrats it was all you!

Yeah I must have had a brain fart. I obviously did it correctly earlier in the day when I flashed Clockwork originally. I was thinking the environment variable editing I did handled the need for the directory but I guess that's only for the command not the file.
Well, all is good now anyway!
Sent from my Nexus S using XDA App

[Q] HTC One & Mini not recognized on pc in fastboot

Hi All
Now a proud owner of HTC One mini (uk) but am having issues trying to unlock bootloader, root and install custom rom.
for some reason my PC will not recognize my mini in fastboot mode . i have re installed the usb drivers and even tried to connect my wifes HTC one which i have previously rooted ...but it will not connect to either of the two.
I would be grateful if the community could offer a solution or advice, Thanks
oh forgot to say pc running windows 8.1
Edit: I found this http://forum.xda-developers.com/showthread.php?t=2588979 on the portal. it has ADB,FASTBOOT and DRIVERS needed . Not tried it myself as reverted to windows 7 however, many users confirming that it works on win 8 & 8.1.
I hope this helps, any thanks is given to the developer "Snoop05" as i am just posting the link.
cheers

Braddison said:
Hi All
Now a proud owner of HTC One mini (uk) but am having issues trying to unlock bootloader, root and install custom rom.
for some reason my PC will not recognize my mini in fastboot mode . i have re installed the usb drivers and even tried to connect my wifes HTC one which i have previously rooted ...but it will not connect to either of the two.
I would be grateful if the community could offer a solution or advice, Thanks
oh forgot to say pc running windows 8.1
Click to expand...
Click to collapse
same problem,change system to windows 7

thinkinbunny said:
same problem,change system to windows 7
Click to expand...
Click to collapse
Hi and thanks for the reply.
yeah ive had to used an old laptop running windows 7 and eventually unlocked bootloader. Now have an issue that adb is out of date! so still unable to root and install magioRom R3 :crying:

Braddison said:
Hi and thanks for the reply.
yeah ive had to used an old laptop running windows 7 and eventually unlocked bootloader. Now have an issue that adb is out of date! so still unable to root and install magioRom R3 :crying:
Click to expand...
Click to collapse
Search around to see if you can find a updated version? Let me explain to you how I did it. First, I unlocked my bootloader. Second, I downloaded the twrp and magiorom r3. Third hold shift and right click on the flashboot folder that you downloaded from htcdev and click on the open command window here. Rename you twrp to recovery. If your twrp file says img on it then try recovery.img, if not then type recovery. And on the cmd type flashboot flash recovery.img. Then you go back to bootloader and go to recovery and follow all the steps on the magiorom link. Don't forget to thank me. And btw, I didn't have to download any of those adb files. You root your phone when you have twrp. It'll ask you if you want to root. Say yes!!!!

abzboi said:
Search around to see if you can find a updated version? Let me explain to you how I did it. First, I unlocked my bootloader. Second, I downloaded the twrp and magiorom r3. Third hold shift and right click on the flashboot folder that you downloaded from htcdev and click on the open command window here. Rename you twrp to recovery. If your twrp file says img on it then try recovery.img, if not then type recovery. And on the cmd type flashboot flash recovery.img. Then you go back to bootloader and go to recovery and follow all the steps on the magiorom link. Don't forget to thank me. And btw, I didn't have to download any of those adb files. You root your phone when you have twrp. It'll ask you if you want to root. Say yes!!!!
Click to expand...
Click to collapse
should be:
fastboot flash recovery recovery.img

theodorius123 said:
should be:
fastboot flash recovery recovery.img
Click to expand...
Click to collapse
Thanks for that. I forgot about that. And I hope that it'll work for him.

abzboi said:
Search around to see if you can find a updated version? Let me explain to you how I did it. First, I unlocked my bootloader. Second, I downloaded the twrp and magiorom r3. Third hold shift and right click on the flashboot folder that you downloaded from htcdev and click on the open command window here. Rename you twrp to recovery. If your twrp file says img on it then try recovery.img, if not then type recovery. And on the cmd type flashboot flash recovery.img. Then you go back to bootloader and go to recovery and follow all the steps on the magiorom link. Don't forget to thank me. And btw, I didn't have to download any of those adb files. You root your phone when you have twrp. It'll ask you if you want to root. Say yes!!!!
Click to expand...
Click to collapse
Many thanks for your advice. I will try this later on.
btw the adb file is in the flashboot file downloaded from htcdec but have found a workaround that i will try

Braddison said:
Many thanks for your advice. I will try this later on.
btw the adb file is in the flashboot file downloaded from htcdec but have found a workaround that i will try
Click to expand...
Click to collapse
cool

Kinda f'd up my Nexus 5's camera..

Hey guys. This is my first post here and I'm new to android (came from iOS). I recently purchased a Nexus 5 and tinkered with it a bit on 4.4 (rooted, stock).
I didn't enjoy the camera quality so I installed CameraMod V1.3. Everything was fine until I installed 4.4.2 on my phone. I noticed that the camera quality become worse and the phone refused to record video. I made the stupid mistake of reflashing (I think that's the right term?) the phone with the stock Camera that I downloaded a while back that ended up being for 4.4.
Opening the camera app would just leave a black screen. It obviously wasn't working so I decided to try to fix things on my own and literally install the 4.4.2 Google Camera APK onto my phone. Now, my phone is telling me it can't connect to my camera..
So.. any help here?

Not sure what you all did, so I'd flash the system.img with fastboot from the 4.4.2 factory image.

jd1639 said:
Not sure what you all did, so I'd flash the system.img with fastboot from the 4.4.2 factory image.
Click to expand...
Click to collapse
+1 to revert to 100% stock.

jd1639 said:
Not sure what you all did, so I'd flash the system.img with fastboot from the 4.4.2 factory image.
Click to expand...
Click to collapse
Does that delete any data such as contacts or messages?
And do you have a link to a tutorial for that? I'm sorry, total noob here.

SpookyAndroid said:
Does that delete any data such as contacts or messages?
And do you have a link to a tutorial for that? I'm sorry, total noob here.
Click to expand...
Click to collapse
No
Follow method#2 but just flash the system.img, nothing else http://forum.xda-developers.com/showthread.php?p=47156064

SpookyAndroid said:
Does that delete any data such as contacts or messages?
And do you have a link to a tutorial for that? I'm sorry, total noob here.
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=2508292
[FAQ] [REF]★ All you need to know about Android | Read this before you post/root !
Its kind of hard to miss this thread title when on the top of the page youre posting the question on

Just dirty flash whatever rom your running
Just dirty flash whatever rom your running or there is a stock camera flash also

BIGJ541 said:
Just dirty flash whatever rom your running or there is a stock camera flash also
Click to expand...
Click to collapse
Read the thread, he's stock

jd1639 said:
No
Follow method#2 but just flash the system.img, nothing else http://forum.xda-developers.com/showthread.php?p=47156064
Click to expand...
Click to collapse
I'm following method 2 but i'm stuck at the CMD part. "Fastboot is not a recognized command"

SpookyAndroid said:
I'm following method 2 but i'm stuck at the CMD part. "Fastboot is not a recognized command"
Click to expand...
Click to collapse
You don't have the usb drivers setup. Google Android naked usb drivers and use those

SpookyAndroid said:
I'm following method 2 but i'm stuck at the CMD part. "Fastboot is not a recognized command"
Click to expand...
Click to collapse
You can use my Nexus 5 Toolkit to write the flash command if you like it has all the files already set up and the drivers for USB are in the directory also
Just enter the command you like in console box but make sure its correct and it should be fine.
Download it here: /watch?v=JMGDgiMDoms#t=70 Youtube link.. I know ha

[Q] Root nexus 5 help!

OK in am new to this if I root my phone with one root brand or what ever it's called can I unroot with the same kind or something different

UnderstandFones said:
OK in am new to this if I root my phone with one root brand or what ever it's called can I unroot with the same kind or something different
Click to expand...
Click to collapse
Okay, to first learn what is root and what it entails, read this http://forum.xda-developers.com/google-nexus-5/help/faq-to-android-read-post-root-t2508292
Once you have understanding of what it is, there are other guides to help you with the different aspects of it and possibilities of what you can do with your phone. Refer to this http://forum.xda-developers.com/goo...urce-guides-info-threads-linked-read-t2784527

Sounds like someone who doesn't know what "root" actually is :/
Also wrong section, and read the stickies.

Google search is your friend.
Google " fastboot "&" adb " along with the word and # " Nexus 5 ".
If you read and understand than it is harder to brick your device
Nexus 5 rastakat 4.4.3 via Tapatalk app

fxdil said:
Okay, to first learn what is root and what it entails, read this http://forum.xda-developers.com/google-nexus-5/help/faq-to-android-read-post-root-t2508292
Once you have understanding of what it is, there are other guides to help you with the different aspects of it and possibilities of what you can do with your phone. Refer to this http://forum.xda-developers.com/goo...urce-guides-info-threads-linked-read-t2784527
Click to expand...
Click to collapse
I understand root sorry I didn't make that clear. However I have three question. #1 Do I root before I get a recovery?#2 Do need a computer to root?

UnderstandFones said:
I understand root sorry I didn't make that clear. However I have three question. #1 Do I root before I get a recovery?#2 Do need a computer to root?
Click to expand...
Click to collapse
You only posed two..
1. No. You need to unlock the bootloader first, from there you can install a custom recovery.
2. Highly recommended. There are tools nowadays that simplifies the process, but nothing works as best as doing it manually. You'll get to learn more, understand how your phone works, and it's much easier overall for the people at this forum to help you if you encounter a problem, if you understand the terms we use and how things are done.
Sent using Etch-a-Sketch.

fxdil said:
You only posed two..
1. No. You need to unlock the bootloader first, from there you can install a custom recovery.
2. Highly recommended. There are tools nowadays that simplifies the process, but nothing works as best as doing it manually. You'll get to learn more, understand how your phone works, and it's much easier overall for the people at this forum to help you if you encounter a problem, if you understand the terms we use and how things are done.
Sent using Etch-a-Sketch.
Click to expand...
Click to collapse
Sorry I also didn't mention I unlocked the bootloader yesterday

UnderstandFones said:
Sorry I also didn't mention I unlocked the bootloader yesterday
Click to expand...
Click to collapse
Did you unlock using adb?
Then you should be on your way to rooting. Remember to flash a custom recovery first, that's very important.
Sent using Etch-a-Sketch.

@UnderstandFones Read all the threads which I've linked in my signature. Please read them thoroughly as it seems that your basics are not yet cleared.

fxdil said:
Did you unlock using adb?
Then you should be on your way to rooting. Remember to flash a custom recovery first, that's very important.
Sent using Etch-a-Sketch.
Click to expand...
Click to collapse
I followed these directions I don't know if it used adb but I think I remember seeing it.

fxdil said:
Did you unlock using adb?
.
Click to expand...
Click to collapse
You can't unlock the bootloader using adb. It needs to be unlocked when the phone is in fastboot mode using a fastboot command.
UnderstandFones said:
I followed these directions I don't know if it used adb but I think I remember seeing it.
Click to expand...
Click to collapse
If you have already unlocked the bootloader, then download a recovery, extract the recovery.img file and then flash it via fastboot. All these steps can be accessed by following the thread linked in my signature.

vin4yak said:
You can't unlock the bootloader using adb. It needs to be unlocked when the phone is in fastboot mode using a fastboot command.
If you have already unlocked the bootloader, then download a recovery, extract the recovery.img file and then flash it via fastboot. All these steps can be accessed by following the thread linked in my signature.[/QUOTE
Where I am confused is when I download the recovery in this case twrp 2.7.1.1 and the superSU and put them in the android platform folder, do I then turn my phone off and fastboot mode and unzip the superSU in the platform folder?
Click to expand...
Click to collapse

vin4yak said:
You can't unlock the bootloader using adb. It needs to be unlocked when the phone is in fastboot mode using a fastboot command.
If you have already unlocked the bootloader, then download a recovery, extract the recovery.img file and then flash it via fastboot. All these steps can be accessed by following the thread linked in my signature.
Click to expand...
Click to collapse
I didn't tell him to unlock using adb did I? Merely pointing out to do it manually, he must have had to download adb to his computer, given that he's not even sure how he unlocked his bootloader.

UnderstandFones said:
Where I am confused is when I download the recovery in this case twrp 2.7.1.1 and the superSU and put them in the android platform folder, do I then turn my phone off and fastboot mode and unzip the superSU in the platform folder?
Click to expand...
Click to collapse
Will you please read the thread named "[GUIDE] Nexus 5 - How to Unlock Bootloader, Install Custom Recovery and Root" which is linked in my signature. Read it thoroughly and then post questions. Please get your basics cleared first.
Put the twrp img file in platform tools folder and then open a cmd window from there to run fastboot commands. Yes, you need to go into fastboot mode to run fastboot commands.

fxdil said:
I didn't tell him to unlock using adb did I? Merely pointing out to do it manually, he must have had to download adb to his computer, given that he's not even sure how he unlocked his bootloader.
Click to expand...
Click to collapse
Just for the sake of accuracy and to be pedantic, fastboot and adb are completely different. fastboot.exe and adb.exe do completely different things. All thats needed unlock the bootloader is fastboot.exe and USB drivers. This can all be done without downloading adb.exe
Sent from my Nexus 5 using Tapatalk

Where I am confused is when I download the recovery in this case twrp 2.7.1.1 and the superSU and put them in the android platform folder, do I then turn my phone off and fastboot mode and unzip the superSU in the platform folder?
Click to expand...
Click to collapse
Turn your phone off, boot into bootloader, then fastboot the recovery image.
Once done, reboot into your new custom recovery, use adb to push the superSU zip to your phone (do not unzip it, leave it as it is), use your custom recovery to locate to the zip, then install it.

fxdil said:
I didn't tell him to unlock using adb did I? Merely pointing out to do it manually, he must have had to download adb to his computer, given that he's not even sure how he unlocked his bootloader.
Click to expand...
Click to collapse
You said, "Did you unlock using adb? Then you should be on your way to rooting."
Anyone would interpret this as if your accepting that the bootloader is unlocked with adb. Which isn't correct. In any case, if that's not what you meant, my bad!

vin4yak said:
Will you please read the thread named "[GUIDE] Nexus 5 - How to Unlock Bootloader, Install Custom Recovery and Root" which is linked in my signature. Read it thoroughly and then post questions. Please get your basics cleared first.
Put the twrp img file in platform tools folder and then open a cmd window from there to run fastboot commands. Yes, you need to go into fastboot mode to run fastboot commands.
Click to expand...
Click to collapse
I am doing what you are telling me in your thread. when I open the command window and input the first code it say "the system cannot find the path specified" that the problem / what has been done fore this to say that?

UnderstandFones said:
I am doing what you are telling me in your thread. when I open the command window and input the first code it say "the system cannot find the path specified" that the problem / what has been done fore this to say that?
Click to expand...
Click to collapse
Post a screenshot please
Sent from my Nexus 5 using Tapatalk

UnderstandFones said:
I am doing what you are telling me in your thread. when I open the command window and input the first code it say "the system cannot find the path specified" that the problem / what has been done fore this to say that?
Click to expand...
Click to collapse
You get that error because the twrp file which you're trying to flash isn't in the platform tools folder.
Here are some things you need to check:
1. Have you navigated correctly to the twrp file path in fastboot?
2. Is the twrp file named correctly? if it's recovery.img then the command would be fastboot flash recovery recovery.img
3. Make sure you have file extensions seen in windows explorer so that you can confirm the file extension.

[Q] OTA bootloader update when rooted?

Hi guys,
I run rooted unlocked Nexus 5 with CM11. I wanted to update the ROM but it failed - I read a bit and found out that it is due to old bootloader version. I would like to update it but I'm not a friend with ADB and stuff.... It would be great to use the most easiest way. I got OTA update notification but have no idea what it does - will it unroot the phone? will I lose CM11 ROM? Just trying to figure out what backups and steps shall I do to update my ROM. How shall I continue from here?
Thanks a bunch!

devcager said:
Hi guys,
I run rooted unlocked Nexus 5 with CM11. I wanted to update the ROM but it failed - I read a bit and found out that it is due to old bootloader version. I would like to update it but I'm not a friend with ADB and stuff.... It would be great to use the most easiest way. I got OTA update notification but have no idea what it does - will it unroot the phone? will I lose CM11 ROM? Just trying to figure out what backups and steps shall I do to update my ROM. How shall I continue from here?
Thanks a bunch!
Click to expand...
Click to collapse
Attempting to take the OTA will fail.
Download the factory image and extract bootloader-hammerhead-hhz11k.img
Boot your device into bootloader:
fastboot flash bootloader bootloader-hammerhead-hhz11k.img
fastboot reboot-bootloader

You have a custom recovery installed, right? Flash the bootloader zip via recovery. However, you need to get familiar with adb/fastboot as you're gonna need them if you ever find yourself in a tight situation to fix your device.
Open the "must read" thread linked in my signature and find the thread which has all the info about adb and fastboot.

vin4yak said:
You have a custom recovery installed, right? Flash the bootloader zip via recovery. However, you need to get familiar with adb/fastboot as you're gonna need them if you ever find yourself in a tight situation to fix your device.
Open the "must read" thread linked in my signature and find the thread which has all the info about adb and fastboot.
Click to expand...
Click to collapse
Thank you! I get it about ADB, I had to solve one my problem in the past via ADB. Anyway, I just need to find the 4.4.4 bootloader in ZIP (or probalby .img will work too?) and flash it? That's it? Does it wipe my phone or something?

You just need to flash the IMG via fastboot, no wiping required!

EddyOS said:
You just need to flash the IMG via fastboot, no wiping required!
Click to expand...
Click to collapse
Alright. One more thing. Is it possible to convert the IMG file I have into zip to be able to flash it in TWRP?
EDIT: I found that Nexus Toolbox for my 5 has the option to flash the bootloader image so I will try this variant.

devcager said:
Alright. One more thing. Is it possible to convert the IMG file I have into zip to be able to flash it in TWRP?
EDIT: I found that Nexus Toolbox for my 5 has the option to flash the bootloader image so I will try this variant.
Click to expand...
Click to collapse
You don't need to. Just boot into fastboot, connect to PC, fastboot flash bootloader name_of_file.img, reboot, done

it's easy you must become familiar with fastboot and add the second you aren't it will come back to haunt you
Sent from my Nexus 5 using Tapatalk

devcager said:
Alright. One more thing. Is it possible to convert the IMG file I have into zip to be able to flash it in TWRP?
EDIT: I found that Nexus Toolbox for my 5 has the option to flash the bootloader image so I will try this variant.
Click to expand...
Click to collapse
so you learned nothing. awesome.

Zepius said:
so you learned nothing. awesome.
Click to expand...
Click to collapse
Brick waiting to happen.
Add to ignore list
Sent from my Nexus 5 using Tapatalk < Yes, I want you to know that I'm using a mobile client

rootSU said:
Brick waiting to happen.
Add to ignore list
Sent from my Nexus 5 using Tapatalk < Yes, I want you to know that I'm using a mobile client
Click to expand...
Click to collapse
I'm still waiting for someone to make a thread saying their device is "bricked because flashed fastboot to adb using bootloader while in recovery with x toolkit"