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Some zips can't be flashed! (using update-binary 2)

Since TWRP 2.3 is based on AOSP jelly bean sources, TWRP now uses recovery API 3 instead of 2.

Some zips may no longer work if it contains an out-of-date update-binary. This will not be a problem on newer devices with good community support, but older devices will probably encounter several zips that need to be updated.

If needed, you can try using this update-binary that was compiled with current sources. It goes in your zip file in the META-INF/com/google/android folder.

Enable LTE Band 4 on Nexus 4

While the Nexus 4 does not support LTE on paper, a leftover Qualcomm LTE chip from the LG Optimus G remains. LTE Band 4 can be activated out of the box, since the UMTS (AWS 1700/2100MHz) antenna supports the very same frequencies.

Other bands are supported in the Qualcomm chip, but more research needs to be done to see if these can be activated.

Carriers using LTE Band 4 (AWS 1700/2100MHz)

(carriers in bold have working support in major cities, carriers in italic currently only have support in select regions, carriers in normal text are under construction or have marginalized support for this band.)

  • Telus (Canada)

  • Rogers Wireless (Canada)

  • Bell Mobility (Canada) - Currently only in some Canadian major cities.

  • Telcel (Mexico) - In 9 Mexican cities, nationwide rollout in progress.

  • T-Mobile (USA) - Under Construction, complete rollout sometime in 2013

  • AT&T (USA) - Might be removed, as AT&T uses . Only available in select regions of Chicago, Charlotte, Dallas, Los Angeles, Las Vegas, Phoenix and Raleigh in the United States and San Juan in Puerto Rico.

Setting an APN

To get into the APN settings, go into your android settings, > under "Wireless & Networks" go into More>Mobile Networks>Access Point Names. You can either select the menu button and create a New APN, or you can select the > one already there and edit it to match the one below.

Rogers (Canada) APN

Name - Rogers LTE
APN- ltemobile.apn
Port- 80
MMSC- http://mms.gprs.rogers.com
MMS Proxy- 10.128.1.69
MCC- 302
MNC- 720
Apn type 1- (default,supl,mms)
2- (*)

Sources

Nexus 4 on AT&T

The Nexus 4 supports HSPA+ on AT&T, and LTE Band 4 in some select cities.

If you're using AT&T with the Nexus 4, and want HSPA+ speeds, DON'T give them your IMEI number; you'll get a 3G-restricted SIM card. This is how to set up your Nexus 4 for AT&T:

If you already used an 4G LTE AT&T phone before the Nexus 4, skip these steps.

Borrow a Friend's IMEI

Find a friend with a 4G phone, dial *#06# to get the IMEI, and give AT&T this IMEI number.

Alternatively, walk into a nearby AT&T store, find a phone and dial *#06# to get the IMEI. Tell an employee that your friend sold you a Galaxy SIII or an HTC One X, and give him the IMEI on a piece of paper.

This is enough to activate a 4G plan on your account, get you a microSIM card, and give you access to HSPA+ speeds.

AT&T usually only checks the IMEI to see if your phone is capable of 4G, based on reports from XDA and Reddit users.

AT&T Code

You need to use these settings to use AT&T on the Nexus 4.

To get into the APN settings, go into your android settings, > under "Wireless & Networks" go into More>Mobile Networks>Access Point Names. You can either select the menu button and create a New APN, or you can select the > one already there and edit it to match the one below.

Code: APN Settings:
Name: AT&T HSPA+
APN: pta (NOTE: IF YOU DON'T HAVE AN LTE PLAN, CHANGE THIS TO "PHONE")
Proxy: Not set
Port: Not set
Username: Not set
Password: Not set
MMSC: [2] http://mmsc.mobile.att.net
MMS Proxy: proxy.mobile.att.net
MMS port: 80 (NOTE: IF MMS ISN'T WORKING, CHANGE THIS > TO "8080")
MCC: 310
MNC 410
Authentication type: Not set
APN type: default,admin,fota,mms,supl,hipri
APN protocol: IPv4/IPv6
APN roaming protocol: IPv4/IPv6
Bearer: Unspecified

Unless you live in Oklahoma City, OK or one of the other few cities - you likely do not have the band of LTE the Nexus 4 can connect to (Band 4) ... so use:

APN: phone

Sources

T-Mobile USA

Getting a microSIM Card

If you're getting a new plan, make sure to buy a microSIM card.

If you're already on T-Mobile, you can ask for one at the store or cut your plain ol' SIM Card into a microSIM card. [[follow this guide|SIM Cards]].

Using tethering

The Nexus 4 is sold without any carrier interference, so wifi tethering will work. However, T-Mobile blocks all user agents that come from known desktop browsers, so just set your computer to use an Android user agent; heck, you could even dump any random junk as the user agent and it'll work.

You'll need this extension to change the user agent:

The block only applies to HTTP use, so you can just use instant messaging, skype, and other stuff without interference.