[Samsung Galaxy Nexus] lukegb:
Google Wallet Prepaid Card Provisioning RE-ENABLED as of 09/03/2012!

Read me first!

Please use the APK method below, or attempt to install Google Wallet from the Play Store/Shop - note that the old browser trick appears to not be working since the Google Play branding appeared.

Please star this Android issue to draw attention to it! Thanks!

MoDaCo Custom Patched APK Allows easy use with all devices

This allows easy use and I'm currently using this too!

See Paul's thread over at MoDaCo for more info: http://www.modaco.com/topic/354635-region-device-root-patched-google-wallet-apk-11-r63-v12/

Google Play Store (more up to date! recommended!)

Google Wallet can be found on the Google Play Store here: https://play.google.com/store/apps/details?id=com.google.android.apps.walletnfcrel

APK method

Prerequisites

You need:

(NOT in the US only) A rooted device

(NOT in the US only) Market Enabler

A device running Android 4.0.2+

com.google.android.apps.walletnfcrel.apk saved on your device

General Instructions

Pull down the notification bar and hit the settings icon next to the date. Then choose "About phone" at the bottom. If "Android version" is NOT listed as "4.0.2", "4.0.3" or "4.0.4", you need to update to a new version. Do that before continuing.

Now, what needs to happen next depends on where you are:

I'm not in the US!

If you're NOT in the US, you'll need to be rooted. Grab Market Enabler from the Android Market and install it.

Run Market Enabler and set yourself as "US T-Mobile".

Now follow the US instructions.

I'm in the US!

Open the Wallet APK on your phone e.g. using ASTRO/File Expert/Root Explorer/the download manager.

Now just open Wallet, and it should correctly authorise.

Troubleshooting

Help! Google Wallet says "Unsupported Device!"

This means that you're on a rooted device, and is perfectly normal. Transactions will still work - it's just Google's way of letting you know that you may be less secure than you would be normally, as rooted apps will be able to access Google Wallet internal files. Be vigilant when approving root access!

Secure Element not responding!

If you have a Nandroid backup of a version of Wallet that worked, try restoring to that. Otherwise, you're screwed unless you get a new device. The Secure Element in your phone has now locked you out.

EDIT: research seems to show that Android is not actually enabling NFC-EE, which might be why it can't communicate with the SE. This needs further research.

To try to avoid this, before flashing a new ROM please, please, PLEASE: open Google Wallet. Open the Wallet Settings menu. Select "Reset Google Wallet" from within the app. THIS IS NOT THE SAME AS SELECTING "CLEAR DATA" FROM WITHIN MANAGE APPS!

The Google Wallet reset system will disable it's background services, reset the secure element by deleting the Google Wallet applet (which is what you want!), clear the database, ping C2DM that it is now deprovisioning, clear the shared preferences, clear files and cache, and finally shut itself down. Clearing data from Manage Apps will only delete the database and shared preferences: it will not deprovision, disable background services, and most importantly will not remove the Wallet applet from the secure element.

Insufficient Privileges. Insufficient secure element privileges for this system image (release-keys)

Err, what? This should only occur if you previously used the ZIP method. If so, you'll need to manually restore the old versions of the files.

This can be achieved by either restoring a Nandroid backup from before you flashed OR by following instructions in this post.

I have something not answered here!

Post in this topic and it'll probably get answered pretty quickly.

I restored a backup and Wallet isn't working

Try uninstalling then reinstalling the APK. This should get the SE back in sync with the Wallet status.

Changelog

09/05/2012

APK updated to 1.1-R57v5 from my device for those who still can't get it on the Store. Sorry for the slow update - it's exam season in the UK!

02/05/2012

Added note about Google Play Store. I'll update the APK soon, but I recommend using the store - seems that Wallet is even appearing for me in the UK now.

09/03/2012

Prepaid card provisioning is reenabled! Go use your Wallet again!

Fixed links.

Removed ZIP method entirely.

Mentioned Market method, need to write up instructions.

Added unsupported device banner note.

02/01/2012

Added some information that should hopefully avoid people getting hit by the Secure Element issue, and a link to the AOSP issue tracker issue.

18/12/2011

Removed old ZIP method. APK should work for most people.

Rewrote OP from scratch.