yashsingh1/xdaforums huggingface dataset:
[Hardware Hacking General] Sneakyghost:
I've spent the morning researching the same thing. Funny to find someone post the same question to XDA a year and a half earlier :D

I've also found out that 4.0 can easily be updated to 4.1 and contacted Magnat, the company that makes my Headphone (LZR 588 BT) - currently waiting for their reply. Doubt they will reply at the weekend, but in case they signal a chance to update their headphones in future, I will post this here, as it is an interesting reference case then.

So far, I have not found ANY evidence whatsoever of OEM's updating their BT equipment from 4.0 to 4.1. I doubt they have an interest in offering this service - BT 4.1 is quite the selling point as it introduces better interference filters (LTE and BT interference) which is quite the concern for many. My own research was motivated by this. My headphones partly have interference issues even when my phone is in my pocket, about 1 - to 1.5 meters away and I am out in the wild in direct sight of a cell tower. Or at home with several BT enabled devices and an LTE antenna not far away...

So, my thought was, if 4.1 can help fix this interference problem, it is a good reason to sell the same product again. Make more money. Why upgrade existing equipment then.

Oh and in case anyone here has the Magnat LZR 588 BT - please do contact them too. you can reach out to them via this email:	info [@] magnat.de - be polite and ask for a way to update your headphones to 4.1.... maybe creates some awareness.

[EDIT] Apparently, BOSE does update their headphones, and the FAQ items ("Why do I need to update my headset?") specifically mentions compatibility updates for BT so it can keep working with newer smartphones, which I understand as a complete BT stack update. So, this kinda proves it should technically be possible and any answer from any company like: "Not possible" is a strategic answer, not a technical one.
[Hardware Hacking General] TheTAMAS:
Very much the case with My Plantronics Voyager Edge.

:laugh:

I too-contacted the customer care regarding the same issue & they said, they've forwarded the issue to the related department. I don't know what they're gonna do with the report/request forwarded to them..

:o
[Hardware Hacking General] TheTAMAS:
I wonder if flashing a rom based on a newer device's rom might also upgrade the phone's Bluetooth version..

Right now I'm using N7 rom for Note3 by Kill-Switch..
[Hardware Hacking General] Sneakyghost:
I found articles discussing the Iphone 6 and 6+ having received an update from BT 4.0 to BT 4.2 (!!) by an iOS update. However, there were no details as to whether this was realized in iOS or in the firmware (radio firmware) part.

I strongly suspect that the update came with the iOS update but was done in the radio firmware, so NOT part of the ROM (iPhones don't differ that much from Android).

So, I would (speculatively) answer that you will NEVER get an updated BT stack by just flashing a newer ROM. It will most definitely be an updated radio firmware and (probably) updated files in the ROM going along the (main) changes in the radio, if there ever will be any such update for any smartphone besides the iPhone 6...

Apart from the iPhone and the Bose headsets, I have found virtually NO example of a BT upgrade. The industry mainly seems to pretend its not possible and with your Plantronics device, well, my guess is, "forwarding to a relevant department" eventually translates to "f*ck off and don't come back" like it usually does.
[Hardware Hacking General] TheTAMAS:
Apple updating 4 year old devices tells that it gives a lot more damn to its costumers than other companies we've mentioned.. In that regard, Apple is better than Google/Samsung

Bose? I've AE2W from them.. Did they update it? :eek:

Plantronics.. :laugh:
[Hardware Hacking General] king3opobn:
Thing about oem updating old devices is that, they don't make as much money as they do selling you a new device with the update included.
[Hardware Hacking General] TheTAMAS:
Yes, I agree.

but that also might mean-losing a customer to a company which does otherwise..

Just saying.. :laugh:

As there are VERRRRRRRRRRY few who do otherwise. :o
[Hardware Hacking General] Sneakyghost:
Magnat have replied. No BT upgrade for customers.

No explainer, no apology. Very dry, factual answer. Not, what I'd like to be treated as a customer.
[Hardware Hacking General] CZ Eddie:
Good luck buddy.

I've been waiting years for someone to figure out how to add the Bluetooth APT-X capability to ROM's without any luck.

See my signature below for a link to the thread which has stumped developers for far too long.
[Hardware Hacking General] Hemnath Deivamani:
Will my SoundPEATS Q12 work in My HTC Desire 620g

I'm Having HTC Desire 620g which has

Bluetooth 4.0

and recently I've ordered for SoundPEATS Q12 which is

Bluetooth 4.1.

and my doubt is.. Will my SoundPEATS Q12 work in My HTC Desire 620g??
[Hardware Hacking General] TheTAMAS:
It will..
[E 2015 General] Lucas Eugene:
UNLOCK YOUR BOOTLOADER​

WARNING: UNLOCKING YOUR BOOTLOADER VOIDS YOUR WARRANTY.PROCEED AT YOUR OWN RISK. EXCEPT If You Live In The EU

NOTE: Unlocking the bootloader will Wipe/ factory reset your device, and will delete all personal data from your device such as apps, photos, messages, and settings.

Prepare Your Moto E for Bootloader Unlock

Your device must be charged up to 70% before going completely through the process mentioned below.
These firmwares are only for the Moto E 2015 variant.
Make sure that you have installed proper device drivers on your computer.

INSTRUCTIONS:

Make sure to take a backup of your entire device data.

Download the Android SDK OR Download the Minimal ADB and Fastboot

Install the latest Motorola USB Drivers on your desktop. Download here.

Go To Settings -> Dev Settings, And Select "Allow OEM Unlock"

Put your device in fastboot mode (power off, then press the power and volume down buttons simultaneously).

Open Command Prompt on androidsdk/platform-tools/ (Hold Shift and right click and press open command window here)

[*]If you have downloaded Minimal ADB and Fastboot Go to C://Program Files/Minimal ADB and Fastboot and open Command Prompt from there.

Connect your Phone to PC

Type this in the CMD prompt window - fastboot oem get_unlock_data

You will get a return string. Copy it. [Right Click-Mark- Mark the text by pressing the shift key-Now press Ctrl+C]

Paste all the lines together in a notepad. Remove the empty spaces.

Now go to the Motorola Site.Sign in using your Google account or Motorola ID. Scroll down the page and paste the copied string in the field at step #6. Then click on ‘Can my device be unlocked?’, after which a "REQUEST UNLOCK KEY" button will appear at the bottom of page.

To get your unlock key, select the ‘I Agree’ option. Note: You will receive an email with your Unlock Key at the email address you used to log in there.

Important – Copy the 20-character key that Motorola sent you via email. Make sure your device is connected.

Then in CMD type: fastboot devices (To check your device is connected)

Then type: fastboot oem unlock UNIQUE_KEY

NOTE: In above command, replace the word ‘UNIQUE_KEY’ with the unlock code that you got via email. Then hit enter and the unlocking process should begin. Wait for a while and soon you’ll see ‘Bootloader Unlocked’ warning on your Moto E.

To relock the bootloader:

Go to Fastboot and give the command fastboot oem lock

Relocking the boot loader causes serious issues with unlocking again and may even cause bootup problems. For more info refer here

You can always appreciate my work by pressing the Thanks Button.:good:

Good Day

XDA:DevDB Information

Unlock Bootloader/ Remove unlocked warning [Mini Faq], ROM for the Moto E 2015

Contributors

Lucas Eugene

ROM OS Version: 5.0.x Lollipop

Version Information

Status: Stable

Created 2015-03-04

Last Updated 2015-03-04
[E 2015 General] Lucas Eugene:
Video Tutorial

FAQ

[SIZE=+1]Q1:How to remove the unlocked bootloader message? [/SIZE]

Download the zip. or this(confirmed to work)

Extract all the files

Reboot to fastboot mode (power + vol down)

Now open cmd and use cd command to go to the directory where you placed the file.

Now Type the command: fastboot flash logo logo.bin

Reboot from the recovery (use vol up to select and vol down to navigate)

Now your bootlogo should be restored back to the normal version

​
[E 2015 General] Lucas Eugene:
Want to Get OTA updates even after Rooting your Device? Here's how.

Use the full unroot option from the Super Su

Flash the stock recovery Use Code : mfastboot flash recovery recovery.img

Now you'll be able to get OTA updates as before

Will this method work with both the 3G and 4g retail variants?

Yes it will
[E 2015 General] Shawn5162:
Can someone who has the Moto E 2015 post a system dump....I wish to create a ROM but don't have the device :)
[E 2015 General] iB4STiD:
buy the device.. so u can make a dump and test ur rom ;)
[E 2015 General] raviindia:
thanks

Thanks for this lovely moto e 2015 bootloader unlocking.
[E 2015 General] fix-this!:
What about root? I assume we have to wait since we dont have a custom recovery yet?
[E 2015 General] Lucas Eugene:
I'll be uploading a guide to root but I need someone to test it ;)
[E 2015 General] cybojenix:
Just to make sure people don't slip up like I did, do NOT change anything on the system without modifying the boot image. Dm-verity is enabled. I'm waiting for a boot image before releasing recovery + root
[E 2015 General] ryanallaire:
Is this for moto E only?
[E 2015 General] Lucas Eugene:
The unlocking guide is pretty much the same for all Moto devices with a few changes ;)
[E 2015 General] SurferNerd6987:
Might wanna fix those links. First one is invalid. And the mirror forces an exe download that installed 7 crapware programs to get to the zip..

Oh, and once its downloaded...doesn't work anyways, says logo.bin unable to be loaded
[E 2015 General] ryanallaire:
Does this work for Nexus 6?
[E 2015 General] Lucas Eugene:
Sorry there is some problem with the links. I'll reupload the files probably by the end of this week

See OP
[E 2015 General] Lucas Eugene:
New Boot Logo Uploaded :)
[E 2015 General] pixiebob:
very impatient to root our devices.thank for your jobs cybojenix
[E 2015 General] yeswap:
Has anyone tried unlocking the Boost Mobile Moto E LTE bootloader with this method? Boost's Moto G can be bootloader unlocked so that's hope.
[E 2015 General] SurferNerd6987:
Just a note, be careful about the unlocking of bootloader yet. You cannot relock the phone without flashing a new system.img which doesn't exist yet.
[E 2015 General] Lucas Eugene:
Updated OP
[E 2015 General] Magissia:
Hello, some of the text is using black color instead of default, meaning it appear black on dark grey when using official XDA dark theme.
[E 2015 General] dandrumheller:
That's because ATT and VZW branded devices are not eligible for bootloader unlock. Thank your carrier.
[E 2015 General] jcpowell:
So more or less I've got no option for root of unlocking my bootloader...
[E 2015 General] dandrumheller:
Correct.
[E 2015 General] LuanHalaiko:
my device bricked with locked bootloader what I do? I have moto e2 surnia xt1514
[E 2015 General] riyazaham:
Can I try this unlock method for my Verizon Moto e 2nd gen CDMA XT1528
[E 2015 General] Peshyy:
If you can get to fastboot, flash some of the stock firmwares available here on XDA. As described here. Hope this helps :)
[E 2015 General] xtermmin:
Not gonna work
[E 2015 General] LuanHalaiko:
but it says that it fails to pass validation
[E 2015 General] Peshyy:
Well, looking at this, I don't see an issue - it boots. Sorry, I haven't experienced this, but looking at his post, it seems it's working properly.
[E 2015 General] riverstyxxx:
Having problems, would appreciate help. Device is on 4.4.4 and system update is not available when checking. Also, bootloader says it does not qualify for unlocking when pasting the key.
[E 2015 General] dandrumheller:
Don't think there was ever a 4.4.4 rom for this device. Do you have a moto e 2nd gen, or first gen? You may be in the wrong forum section.
[E 2015 General] riverstyxxx:
It's an XT830C model. Sold by pageplus as a refurb, but it was originally a tracfone prepaid. I had my phone number ported over. It shows as 4.4.4 and no update available when connecting to wik
[E 2015 General] dandrumheller:
Yep you're in the wrong place. Moto e2s are xt1xxx models.
[E 2015 General] riverstyxxx:
Many apologies. Was directed here originally, can you point me to the right forum? I still can't update to lollipop, dont know why.
[E 2015 General] dandrumheller:
Depends on carrier whether they lock bootloader or not. Vzw and ATT models over here don't allow bootloader unlocking. Stand by I'll try to get you a link to the og moto e forum.
[E 2015 General] riverstyxxx:
I tried using the motorola tool with minimal adb, but it said it didnt qualify for unlocking. I hope im not sol, I'd have to return it.
[E 2015 General] dandrumheller:
Try here.

http://xdaforums.com/moto-e/general
[E 2015 General] hafiz_binshah:
Anyone have the original logo.bin file? Because the bootloader style was changed after flashing the given logo.bin file, I mean before flashing it, "start, restart bootloader and so and so" was appeared inside buble on the right corner now it's seen on middle of the screen. I found one earlier but I missed the file :(
[E 2015 General] hafiz_binshah:
fixed logo

This is the original logo.bin file. Please check it out, you'll understand the difference.

https://dl.dropboxusercontent.com/u/65930505/logo.bin

please make me know if I'm wrong.
[E 2015 General] mamajojobean:
What if Moto says it can't unlock?

After pasting my string on the moto site, I got a pop-up that said "your device does not qualify for unlocking." Does that mean there is really no way to unlock my phone, and it can't be rooted?
[E 2015 General] dandrumheller:
Which version do you have?
[E 2015 General] mamajojobean:
Moto E 2nd gen, 4G LTE, Android 5.1

I tried king root and kingoroot and they didn't work.
[E 2015 General] dandrumheller:
Verizon xt1528, ATT/cricket xt1527? Those are bootloader locked by the carriers.
[E 2015 General] mamajojobean:
Yes, Verizon xt1528. Though it isn't on a verizon plan, just used like a tablet with wifi.

So I contact verizon to unlock it?
[E 2015 General] xtermmin:
The Verizon model is already SIM unlocked, but it cannot be bootloader unlocked, so therefore there is no root or custom ROMs.
[E 2015 General] mamajojobean:
Arg! I have spent hours trying to root this thing!

Thank you so much for your help!
[E 2015 General] Luca14071978:
I have a smartphone Moto E (2015- 2nd generation), basically I unlocked the bootloader according to the guide, and I flashed the TWRP recovery via fastboot, then I flashed through the fastboot logo.bin logo downloading the .zip file of the message N ° 2. After that I went into recovery and I rebooted the system, however the TWRP recovery has asked me to install SuperSu and I have agreed, after restarting the screen remained black (almost on gray).

After that I tried to go back into recovery and tried to flash UPDATE-SuperSU-v2.65-20151226141550.zip but nothing, when I restart the system yet the black screen, then I tried to do a factory reset (via wipe factory reset) and another reset (complete wipe including internal storage) but the result does not change.

Can someone help me ??
[E 2015 General] AnderGuzmanD:
This method allows me to change the ROM to a free operator logo clean ie a rom xt1527 greetings

---------- Post added at 07:54 AM ---------- Previous post was at 07:53 AM ----------

ROM change xt1528 to xt1527?
[E 2015 General] xtermmin:
You cannot change the XT1528 to another model's ROM. The XT1528 has a locked bootloader.
[E 2015 General] crazynapkinman:
Can you flash logo.bin without PC? Just wondering. I have flashed boot logo numerous times via fastboot+pc. Wondering if there was some obscure app that would circumvent the pc connection
[E 2015 General] linhnd2000:
I tried this after rooting but the update keeps giving error. not sure why
[E 2015 General] ÀnkanKoley:
which 1 is better official 5.1 or cm 13? in otus.
[E 2015 General] yondee:
Im using moto e xt1527 (Cricket vendor) baseband M8916_2020602.05.03.21.07R SURNIA_ATT_CUST

Trying to unlocking bootloader, but my device cant be unlock.

The respon on Motorola website is -Your device does not qualify for bootloader unlocking.-

Anyone help me?
[E 2015 General] xtermmin:
There's nothing to help. The Cricket model cannot be bootloader unlocked.
[E 2015 General] jkeuclid:
Same issue I'm experiencing with an XT1527 ATT GoPhone variant I purchssed for my daughter, I'm using it with Consumer Cellular btw.
[E 2015 General] xtermmin:
The AT&T/GoPhone/Cricket XT1527 and the Verizon XT1528 cannot be bootloader unlocked.
[E 2015 General] jkeuclid:
I was afraid of that and I gather no unlock no root then? I was led to believe thru my research that these types of phones were all unlockable, otherwise why on earth would they lock these things down, what's to gain?
[E 2015 General] xtermmin:
Carriers don't want customers bypassing hotspot lockdowns, removing carrier bloatware, etc.
[E 2015 General] jkeuclid:
Yep what a load of bs, I'll never understand this. Now I need to scope down another inexpensive rootable phone alternative.
[E 2015 General] xtermmin:
The Moto-direct and Canadian models of the XT1527 can be bootloader unlocked. Additionally, the US Cellular verison of the XT1526 is fully compatible with Consumer Cellular and has an unlockable bootloader (although you'll have to do the GSM-enable trick, there's a couple of topics in this sub-forum that cover it).
[E 2015 General] jkeuclid:
Good info, much appreciated.
[E 2015 General] O.P.P:
When i open command prompt in the Minimal ADB and Fastboot and paste the command fastboot oem get_unlock_data i get waiting on device. I am using the LTE moto E with ATT
[E 2015 General] jkeuclid:
@ O.P.P,

Sometimes it helps to go into developer options in settings and chose "Revoke USB debugging authorizations", then plug back into pc, open up command prompt and enter "adb devices", you should see a prompt for RSK key etc., check box to allow every time, then just to be sure, exit the command window, then reenter it and type "adb devices" again, you should see your serial under devices attached, then type "adb shell", accept the customary SuperSU prompt to allow, then type SU in the shell, except the prompt from SuperSU again, then exit the window once again, probably wouldn't hurt to restart your phone as well as your pc, then try your "fastboot oem get_unlock_data" once again, hope this helps it has for me on occasion.

Edit: Bootloader unlock and subsequent removal of warning (using Logo.zip) went without issue on USC XT1526.
[E 2015 General] O.P.P:
Hi when i put in the adb devices command i get "List of devices attached' but the line under it is empty. Are there some kind of Motorola drivers i need to install? Windows 10 does detect the device and i can open it up in explorer
[E 2015 General] jkeuclid:
That happens often when connecting for first time among other things, just close and reopen a cmd window and try again.
[E 2015 General] O.P.P:
The little notficication beep boop noise thing keeps going off so maybe its a bad usb. I try to get another one i try again.
[E 2015 General] jkeuclid:
it's possible, but to be sure do you have current drivers installed?
[E 2015 General] xtermmin:
If your Moto E LTE is AT&T branded (or GoPhone or Cricket), you won't be able to bootloader unlock it anyway.
[E 2015 General] O.P.P:
Can it be rooted?
[E 2015 General] xtermmin:
Short answer: Not really.

Long answer: Some people have been able to get Kingroot to somewhat work (not guaranteed, sometimes it works, most of the times it doesn't), but it makes the phone really unstable and you'll lose it after reboot, if not sooner.
[E 2015 General] O.P.P:
Is there a way to debrand the phone. Also what model is compatible with all the Roms this phone has?
[E 2015 General] xtermmin:
The only way to "debrand" the phone is to unlock the bootloader, which the AT&T/GoPhone/Cricket model can't be.

Pretty much all models except the AT&T/GoPhone/Cricket branded XT1527 and the Verizion XT1528 can be bootloader unlocked.

For AT&T usage, you can either go with the Moto-direct XT1527, the Canadian XT1527, or the US Cellular XT1526 (via GSM-enable trick).
[E 2015 General] O.P.P:
Well that sucks:( For the Us Cellular version to run on GSM would this work http://xdaforums.com/moto-e-2015/general/how-to-verizon-moto-e-2015-gsm-network-t3098953 (There was another thread I read on how to put verzion moto E on GSM but i cant find it at the moment ) but idk if it would work with the US cellular version.
[E 2015 General] xtermmin:
This one seems to have the best results with the USC variant: http://xdaforums.com/moto-e-2015/general/help-confirm-5-1-how-to-verizon-moto-e-t3264258
[E 2015 General] evotz:
If you can get root on the phone, with Kingroot, or some other method, could you just directly replace the recovery partition and boot into recovery and replace the OS with a custom mod (like Cyanogenmod)?

- Get root

- Identify the recovery partition on the device

adbshell:/ # ls -l /dev/block/platform/*/by-name/recovery

lrwxrwxrwx root root 2012-11-20 14:53 recovery -> /dev/block/something

- Push the TWRP Recovery to /sdcard

adb shell push custom-recovery.img /sdcard

- Replace recovery partition with TWRP Recovery?

adbshell:/ # dd if=/sdcard/custom-recovery.img of=/dev/block/something

- Reboot into Recovery

adb reboot recovery

- Install Cyanogenmod

Would something like that work? I'm not really that inclined to try bricking my Moto e, but I'm curious if something like that might work?
[E 2015 General] Cobra04:
With a locked bootloader, none of that would work since they are not signed.
[E 2015 General] born.weird:
When i type "fastboot oem get_unlock_data" i get a return string stating that it is not a proper internal or external command. Please help. Thank you in advance.
[E 2015 General] xtermmin:
Sounds like you don't have Minimal ADB and Fastboot installed. Read the first post for instructions. You'll also need to install the Motorola device drivers (also in the first post).

Also, I see your carrier logo is Verizon. The Verizon model cannot be bootloader unlocked.
[E 2015 General] born.weird:
I didn't know that damn. Thanks for the information though. :)
[E 2015 General] preficks:
Still safe to unlock/root Ringplus?

I just got one of these phones which was registered on the Ringplus network prior to the April 17th Sprint cut off. It's operating properly on the Ringplus network, but the phone is not unlocked or rooted.

My question is: can this phone be safely unlocked and rooted now that the April 17th Sprint cut off date has passed? Will unlocking and rooting this phone now trigger a recheck and bounce the phone off the Ringplus network, forcing it to be registered on the Sprint network?
[E 2015 General] blueberry.sky:
Just unlocking or rooting should be perfectly fine. The network doesn't know or care.

The only things that should hurt you are attempting to change phones on your account aka ESN swap, letting your service get deactivated, or maybe porting in a phone number.

By the way, how do you like ringplus? I've heard their internet can be slow, long ping times. I'm thinking of trying ringplus.

MD5sums? At least for the "confirmed to work" logo.zip?
[E 2015 General] preficks:
I'm not sure that I would use it as my primary phone. I've experienced one or two instances where a call simply wouldn't go through (no ring tone, and no voicemail, etc.), but considering that there is no monthly fee, I really have no complaints. I should mention that I'm not a typical cell phone user. I spend absolutely zero time on Facebook, twitter, and instagram, and I don't really stream media or play games on my phone. My cell phone use is primarily as a phone, as a note taking and dictation device, book reader, music on SD card, GPS, VPN and SSH, etc.

I'd recommend, if you happen to have an extra phone lying around, sign up for their completely free/no deposit plan and give it a try. Nothing to lose that way.