Root [MetroPCS] [GUIDE]Using KDZ to get back to MS50010i firmware

ancientbones · May 9, 2014

Ok. Well I redownloaded it a third time and it seems to be working now? I got the same log you did without a phone plugged in so I plugged it in and tried again and it seems to be working. Will report back in a few to see if it actually downgrades me.

ancientbones · May 9, 2014

Woo hoo! It's back to 10i! Thanks all!

If you're curious about what I did, I performed a fresh factory reset, redownloaded that KDZ, and then suddenly it worked.

bareleethare · May 9, 2014

hi, I have the Metro PCS LG Optimus F6. It came with the "i" version, I rooted it without problems. Like a dummy I did the update to the 12b without unrooting it. My problem is with reverting it back to the 10i firmware. I have read and read all of the posts on here for the last week now and have tried everything that was suggested but i still can't seem to get it back to the MS50010i firmware. I tried the KDZ method with phone in download mode and my phone does nothing. Any ideas would be greatly appreciated. I have added the log of when trying to do the KDZ method if anyone can make sense of what the problem is. Thanks in advance.

[R&D Test Tools Log File]

08:06:36 : Launching SW update
08:06:36 : Unpacking KDZ
08:06:58 : KDZ file extraced
08:07:15 : Files were extracted.
08:07:15 : LGMobileDL Load.
08:07:15 : Port = -1
08:07:15 : Connecting to phone
08:07:30 : Check Phone mode = 2
08:07:30 : Phone type check.......
08:07:31 : LGMobileDL.DLL Loading....
08:07:32 : _SetAuthMark Fail
08:07:32 : _SetAuthMark Ok : wAuthMark(65535)
08:07:32 : LoadLibrary Error(126)
08:07:34 : ===FINISHED===

johnsan1234 · May 10, 2014

Would someone please give me the steps to do this. I am reading the instructions but it's not very clear. I don't know if i need to put stuff on my phone, I don't know if I need to leave it on the computer. The instruction are not very clear. I want to root my phone but I can't understand the instructions. Please help. Thanks so much!!!

Whyzor · May 10, 2014

bareleethare said:
hi, I have the Metro PCS LG Optimus F6. It came with the "i" version, I rooted it without problems. Like a dummy I did the update to the 12b without unrooting it. My problem is with reverting it back to the 10i firmware. I have read and read all of the posts on here for the last week now and have tried everything that was suggested but i still can't seem to get it back to the MS50010i firmware. I tried the KDZ method with phone in download mode and my phone does nothing. Any ideas would be greatly appreciated. I have added the log of when trying to do the KDZ method if anyone can make sense of what the problem is. Thanks in advance.

[R&D Test Tools Log File]

08:06:36 : Launching SW update
08:06:36 : Unpacking KDZ
08:06:58 : KDZ file extraced
08:07:15 : Files were extracted.
08:07:15 : LGMobileDL Load.
08:07:15 : Port = -1
08:07:15 : Connecting to phone
08:07:30 : Check Phone mode = 2
08:07:30 : Phone type check.......
08:07:31 : LGMobileDL.DLL Loading....
08:07:32 : _SetAuthMark Fail
08:07:32 : _SetAuthMark Ok : wAuthMark(65535)
08:07:32 : LoadLibrary Error(126)
08:07:34 : ===FINISHED===

I'm getting same error. Even upgrading LG United Mobile Drivers on my Windows 7 system from 3.8.1 to 3.10.1.

frosthax1 · May 10, 2014

are you putting your phone in download mode holding only volume up on a powered up phone and plugging it in? if so i dont see why you would be getting this error as it works fine for most.little suggestion would be trying a factory reset and if you have a custom recovery use f6 utilities to revert back to stock then try again in download mode.somethings definitly hanging it up and we have to figure out what it is.that should clear it all but unsure,let us know

13onk · May 11, 2014

Your phone will actually say download mode of you're in download mode... Are you in download mode?

bareleethare · May 11, 2014

frosthax1 said:
are you putting your phone in download mode holding only volume up on a powered up phone and plugging it in? if so i dont see why you would be getting this error as it works fine for most.little suggestion would be trying a factory reset and if you have a custom recovery use f6 utilities to revert back to stock then try again in download mode.somethings definitly hanging it up and we have to figure out what it is.that should clear it all but unsure,let us know

Hi,yep I did the factory reset, had phone in download mode, still did not work. I don't have a custom recovery to try and revert back to stock. Not to familiar with how to do that if someone could walk me through that I will try that. thanks for the response.

13onk · May 11, 2014

Make sure you have the correct phone settings set in kdz. Try anouther usb cable.

Whyzor · May 11, 2014

13onk said:
Your phone will actually say download mode of you're in download mode... Are you in download mode?

frosthax1 said:
are you putting your phone in download mode holding only volume up on a powered up phone and plugging it in? if so i dont see why you would be getting this error as it works fine for most.little suggestion would be trying a factory reset and if you have a custom recovery use f6 utilities to revert back to stock then try again in download mode.somethings definitly hanging it up and we have to figure out what it is.that should clear it all but unsure,let us know

Yes Im in download mode, screen shows it too. The "Read phone info" also shows the SetAuthMark and GetAuthMark failure messages. I only rooted 10i, no custom recovery installed.

BTW, holding the power button for 10 seconds also turns off the phone like a battery pull, probably safer method too.

jchavez1993 · May 12, 2014

13onk, where did you upload the new kdz???

ajamie234 · May 12, 2014

Whyzor said:
Yes Im in download mode, screen shows it too. The "Read phone info" also shows the SetAuthMark and GetAuthMark failure messages. I only rooted 10i, no custom recovery installed.

BTW, holding the power button for 10 seconds also turns off the phone like a battery pull, probably safer method too.

Read phone info has never worked for me fyi and ive kdz'd multiple times

13onk · May 13, 2014

jchavez1993 said:
13onk, where did you upload the new kdz???

I didn't. I tested the original one posted and it worked fine.

As for kdz, read phone hasn't ever worked for me either on this device. Kdz freezes when i try it. I was hoping it would save a kdz so we could make a one step root, but i was way wrong. From the access message id bet kdz was set to the wrong phone mode or something.

Whyzor · May 13, 2014

ajamie234 said:
Read phone info has never worked for me fyi and ive kdz'd multiple times

Yeah I suspected as much and went straight to the launch software update, but still the same error about loading library, even tried 2 different .kdz downloads. Wish someone would provide a MD5SUM whenever posting binaries for download to double check the integrity of a file.

sammyz · May 13, 2014

ajamie234 said:
Source: [GUIDE] Unbrick OR Unroot LG Motion 4G [KDZ]

Thanks to: please thank sammyz and duper1 who posted the method here.

your source doesn't have a link

Whyzor said:
BTW, holding the power button for 10 seconds also turns off the phone like a battery pull, probably safer method too.

Literally doesn't make a difference. Whatever floats your boat is fine though

Whyzor said:
Yeah I suspected as much and went straight to the launch software update, but still the same error about loading library, even tried 2 different .kdz downloads. Wish someone would provide a MD5SUM whenever posting binaries for download to double check the integrity of a file.

It's not a corrupt file. If KDZ extracts successfully, it's not the kdz's fault.
There is a problem with one of the following:
1) You need to reboot your computer
2) Drivers didn't install correctly on the PC even though you installed it "successfully"
3) It might be that we will need to use the same method as the VM/Sprint F3's which would involve me making a new flashing method for this phone. The reason would be because the DLL supplied with the KDZ file was either not placed in it or LG broke something. I can fix that.

I have class and then a small job tonight. Will make option 3 available tomorrow.

Whyzor · May 13, 2014

sammyz said:
Literally doesn't make a difference. Whatever floats your boat is fine though

My phone's in a case, so prefer not haveto open the back cover to do a hard reset, plus a 10-15 sec power button hold could theoretically allow any RAM data to be flushed before shutdown (but I doubt download mode has a RAM cache anyway, just thought I'd pass this info for others.

sammyz said:
It's not a corrupt file. If KDZ extracts successfully, it's not the kdz's fault.
There is a problem with one of the following:
1) You need to reboot your computer
2) Drivers didn't install correctly on the PC even though you installed it "successfully"
3) It might be that we will need to use the same method as the VM/Sprint F3's which would involve me making a new flashing method for this phone. The reason would be because the DLL supplied with the KDZ file was either not placed in it or LG broke something. I can fix that.

I have class and then a small job tonight. Will make option 3 available tomorrow.

#1 was ruled since I did reboot my computer. I thought I ruled out #2 too because my computer loads the correct drivers for the F6 in various MTP/Charge Only/PTP/LG USB modes. But only today did I try it on a different Windows PC and it finally flashed the kdz.

#3 couldn't hurt to make this whole thing a little more reliable. The SetAuth errors is not exactly helpful. And the library load error didn't suggest it was a Windows Drivers issue at all.

erccom90 · May 14, 2014

Please can you help me. I dont seem to be able to downgrade my phone.
Can please give me a step by step what to do. I have a metropcs f6 firmware 12b
I am using 7 zip to extract the the zip file and its giving me errors.

Lumbrjak · May 14, 2014

Im getting set auth fail too.. idk what to do.

reloaded231 · May 14, 2014

try using a different usb cable i was having trouble with kdz on 2 computers changed out the usb cable and it passed on the first try and yes they were 2 different brands of usb cables

Lumbrjak · May 14, 2014

This is the error i'm getting.

Lumbrjak · May 14, 2014

Ok ill try a different usb.

bareleethare · May 15, 2014

well I don't know what else to try. I tried on my roommates computer which has Windows 7 on it. I tried a different usb cable, tried uninstalling drivers and rebooting, reinstalling drivers and restarting. downloaded the kdz and the ms50010i files numerous times and from different links and it still comes up with the same error. It's really frustrating. Is there any other way to revert it back to the "i" firmware besides using the kdz method? :thinking:

GameTheory · May 15, 2014

bareleethare said:
well I don't know what else to try. I tried on my roommates computer which has Windows 7 on it. I tried a different usb cable, tried uninstalling drivers and rebooting, reinstalling drivers and restarting. downloaded the kdz and the ms50010i files numerous times and from different links and it still comes up with the same error. It's really frustrating. Is there any other way to revert it back to the "i" firmware besides using the kdz method?

I remember back a couple years ago I had issues with the kdz tool. What fixed it for me was updating the windows .net framework found here.

This may or may not be the case for you. Just throwing it out there in case you wanna try it.

There is no other way of returning to 10i firmware.

Good luck

Dark Creation · May 15, 2014

What is this? Did I miss something? UpTestEX_mod2_marwin.exe

bareleethare · May 16, 2014

GameTheory said:
I remember back a couple years ago I had issues with the kdz tool. What fixed it for me was updating the windows .net framework found here.

This may or may not be the case for you. Just throwing it out there in case you wanna try it.

There is no other way of returning to 10i firmware.

Good luck

ok I'll give that a try. Thank you for your help.

Root [MetroPCS] [GUIDE]Using KDZ to get back to MS50010i firmware

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