Mobile plan in USA

估唔到，我喺香港無上網會瞓唔著o既一個人，喺美國可以忍受一個月都無手提電話。因為，我無幾可係條街度，返工放工都係開車，跟本就無咩需要 mobile internet。真係講都唔信。

但無 mobile 又真係好唔方便，例如：無導航，無google，無得 searching，搵唔到人又人地搵唔到你。總之就勁唔方便。因此就開始物色電話 plan。

AT&T - 大公司，貴，但 coverage 應該唔錯，行GSM，但 LTE 個 band 同香港唔到，所以香港手機拎到嚟係用唔到美國 LTE。

Verizon - AT&T o既死對頭，有好多人聲稱 coverage 好過 AT&T。但係行 CDMA，即係我要買過電話。

T-mobile - 有間中用下2蚊 per day with Candy bar 電話，我估係 2G signal，但公司收唔到，所以收佢檔。

Sprint - 唔知咩料，唔博囉。

US cellular - 聽講有無限 data，但係好都係 4GB 後限速。

Straight Talk - MVNO，即係類似香港o既兔仔台。佢有ATT，T-mobile，Verizon compatible plan。咁啱佢有個 promotion，$0.99 sim card kit，連 45 plan 一齊買就可以 free overnight shipping。$45 unlimited airtime, text and data，3Gb 後限速。

最終，我選擇咗 Straight Talk，一於就試佢，衰咗都係 $45 蚊。

星期六落 order，星期一先到，因為星期日係唔計數。

用落唔錯，公司收到，住o既地方收到，家姐度收到，我諗都應該收貨。但我部 Galaxy S3 收唔到美國 4G，iPhone 4s 無 4G，Lumia 920 又搞搞佢先用到 4G。(不過最終都整到)

S3 做到 tethering，iphone 唔得，920 又要搞餐飽先 share 到。

920 之詳解，請另見詳文。

Internet Tethering in Nokia Lumia 920 (RM-820) in AT&T/Straight Talk

My Lumia 920 is AT&T version originally. It has been flashed to RM-821 HK version. However, it doesnt work with the Straight Talk 4G (ATT). That's why I try to flash back to RM-820 ATT firmware. By Murthy's law, I have no luck that I can get it back to ATT firmware but Rogers one. Anyway, it works with 4G now. By the way, It took me RMB200 to unlock in Taobao.

The next challenge is internet sharing. It seems that nokia worked with ATT which doesn't allow user to have tethering. However, there is a trick to get rid of it!

HOW TO:

Requirements (Pre-requisites)

Lumia 920 Phone (my one is with Rogers firmware) 

Straight Talk microSIM

Foreign microSIM (for me, CMHK)

Access Point, installed on the phone. access point | Windows Phone Apps+Games Store (United States)

Step-by-Step

Part I : 

- Use Access Point and the foreign SIM to configure tethering settings

- Insert foreign SIM card into phone and boot it up.

- Goto Settings->Access Point, launch the app, and verify that it applies the foreign settings (it should read 'active' underneath the Mobile Operator settings being used)

- Reboot the phone to ensure the settings 'stick'

- Shut down the phone.

- Remove the SIM card.

Part II: 

- Uninstall Access Point to keep the tethering settings. (If you don't do this and boot with the Straight Talk SIM, Access Point may apply a different set of tethering settings.)

- Boot the phone

- Go to settings->Time & Date

- Turn off Automatic Date, set the year to 2113 (or something ridiculous)

- Go to settings->Access Point. When you launch the app, it will request to uninstall because it has expired. Uninstall it.

- Restore the time & date settings, shut down the phone.

Part III: 

- Boot with the Straight Talk SIM and configure APN/MMS settings

- Insert the Straight Talk SIM card, boot phone

- Goto Settings->Cellular

- Configure & save internet settings with (this should be consistent w/ the Straight Talk website)

- APN: tfdata

Send yourself a picture MMS to apply the new MMS and data settings (this is important).

Go to Settings->internet sharing, turn on sharing.

and here we go~~~