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PSA: Clear Google Wallet Settings Before Flashing ROM/Hard Resets!

OP TaintedByte

26th May 2012, 03:32 PM   |  #1  
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IMPORTANT! Please read!

EDIT: I'm sorry xD I meant to post this in the Evo 4G LTE forums, I was lurking both and accidentally posted it here. It is no danger to us since our 3D does not have a NFC chip, but if you're upgrading to a Evo LTE, please read. Mods, you can close, my bad.

While waiting to get my hands on one of these awesome phones I've been reading all I can about it. One thing I ran across in another forum was an issue people were having with the Nexuses & One X's and Google Wallet.

Apparently if you do not clear the Google Wallet settings before you do a hard reset/ROM flash, the secure element in your NFC chip will be FOREVER bricked and you will NOT be able to ever use it for secure purposes (google wallet purchases) although it will work for other things like Beam and such.

For some, this wont be a problem, but if you ever plan or at least want to have the option to use the google wallet, follow these simple steps before doing a hard reset or flashing a new ROM on your phone:

Launch Google Wallet
Hit menu button> Settings> Reset Google Wallet

Clearing the app data or cache through settings or Titanium WILL NOT WORK! It HAS to be done within the Wallet app. This resets the secure certificate (?) and allows NFC to be used for secure purposes in the future.

---

While I understand the notion of keeping such functionality very secure, Google should have expressed the potential problem. Especially since hard resets are used as a solution when an ordinary user has a problem with their phone.

Also, forgive me if there is a thread on the Evo LTE forums about this, I tried searching and nothing came up, furthermore it's late and I did think this warranted utmost attention since people already have LTE's in their hands!

Sources:
http://rootzwiki.com/news/_/articles...le-wallet-r280
http://forum.xda-developers.com/show....php?t=1472117
http://androidforums.com/verizon-gal...ml#post4013169
http://androidforums.com/sprint-gala...ml#post4376858
Last edited by TaintedByte; 27th May 2012 at 01:53 AM.
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26th May 2012, 03:34 PM   |  #2  
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Good lookin out for all the evo lte upgraders.

Sent from my PG86100 using XDA
26th May 2012, 03:46 PM   |  #3  
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Quote:
Originally Posted by Racer Of All

IMPORTANT! Please read!

While waiting to get my hands on one of these awesome phones I've been reading all I can about it. One thing I ran across in another forum was an issue people were having with the Nexuses & One X's and Google Wallet.

Apparently if you do not clear the Google Wallet settings before you do a hard reset/ROM flash, the secure element in your NFC chip will be FOREVER bricked and you will NOT be able to ever use it for secure purposes (google wallet purchases) although it will work for other things like Beam and such.

For some, this wont be a problem, but if you ever plan or at least want to have the option to use the google wallet, follow these simple steps before doing a hard reset or flashing a new ROM on your phone:

Launch Google Wallet
Hit menu button> Settings> Reset Google Wallet

Clearing the app data or cache through settings or Titanium WILL NOT WORK! It HAS to be done within the Wallet app. This resets the secure certificate (?) and allows NFC to be used for secure purposes in the future.

---

While I understand the notion of keeping such functionality very secure, Google should have expressed the potential problem. Especially since hard resets are used as a solution when an ordinary user has a problem with their phone.

Also, forgive me if there is a thread on the Evo LTE forums about this, I tried searching and nothing came up, furthermore it's late and I did think this warranted utmost attention since people already have LTE's in their hands!

Sources:
http://rootzwiki.com/news/_/articles...le-wallet-r280
http://forum.xda-developers.com/show....php?t=1472117
http://androidforums.com/verizon-gal...ml#post4013169
http://androidforums.com/sprint-gala...ml#post4376858

hopefully they come up with a solution to this. Maybe something like an option in recovery to wipe this "partition" automatically before each flash.
26th May 2012, 10:41 PM   |  #4  
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I actually just read that article yesterday... Funny

------
3(d)vo one s
Newts my hero.
26th May 2012, 11:03 PM   |  #5  
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Great to know. Good looking out! :beer:

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27th May 2012, 01:51 AM   |  #6  
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Quote:
Originally Posted by hockey4life0099

hopefully they come up with a solution to this. Maybe something like an option in recovery to wipe this "partition" automatically before each flash.

Yeah what I couldn't find and am interested in is if there is an actual partition on the phone with this info or its stored in the NFC chip itself, and whether it's a certificate file or what.

It would be nice if there was a way to do this through the recovery, then devs can cook the wipe command before flashing their ROM.

EDIT: I'm sorry xD I meant to post this in the Evo 4G LTE forums, I was lurking both and accidentally posted it here. It is no danger to us since our 3D does not have a NFC chip, but if you're upgrading to a Evo LTE, please read. Mods, you can close, my bad.
Last edited by TaintedByte; 27th May 2012 at 01:54 AM.
27th May 2012, 05:25 AM   |  #7  
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Quote:
Originally Posted by Racer Of All

Yeah what I couldn't find and am interested in is if there is an actual partition on the phone with this info or its stored in the NFC chip itself, and whether it's a certificate file or what.

It would be nice if there was a way to do this through the recovery, then devs can cook the wipe command before flashing their ROM.

EDIT: I'm sorry xD I meant to post this in the Evo 4G LTE forums, I was lurking both and accidentally posted it here. It is no danger to us since our 3D does not have a NFC chip, but if you're upgrading to a Evo LTE, please read. Mods, you can close, my bad.

I'm sure you're fine man. There are plenty of people who are soon moving to the LTE from here and the info is useful. Thanks again

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13th July 2012, 03:31 AM   |  #8  
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Ive never been able to launch Google Wallet to clear these settings. No menu button comes up, just that it dosent work for my phone or country. Is this an issue?

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