What is Blacklist/Barred imei of iPhone? Is that imei can unlock for other networks?

There are many imei of iphone which are tag as blacklist or barred & can not be unlocked by normal or regular services. Moreover there are very limited networks which provide unlocks of blacklist or barred imei of iphone.
Bell Canada provide this service. For only iphone 4 8Gb & iPhone 4s 16Gb. Now you can unlock your blacklist or barred imei if your locked network is bell & your iphone is 4 8gb & 4s 16gb.
If your iPhone match the discussed circumstances then you can order your unlock from http://www.phoneunlockingshop.ca or Bell iPhone Unlocks Premium Services
There are no restrictions of firmware or baseband. You can unlock any firmware & any baseband.

Benefits & Risks of Unlocking iPhone?

Benefits Of Unlocking iPhone from http://www.phoneunlockingshop.ca

• Save money of roaming.
• More network Options.
• Use the network of your choice.
• Unlocked phones are more valuable. So increase it resale value.

Risks Of Unlocking iPhone from http://www.phoneunlockingshop.ca

• No loss of feature & functionality.
• No loss of your data.
• No loss of your contacts, note, gallery or anything saved in the phone.

Why unlock a iPhone?

Unlocking iPhone makes it usable with all GSM networks all over the world. All iPhones can be unlocked permanently in efficient and secure ways that do not cause any harm to your iPhone. Unlocking a iPhone gives users, the flexibility to use it with any SIM Card under any Service Provider in any part of the world. Unlocked iPhone are also more valuable so unlocking could also increase its resale value

Which Firmwares Can be Unlocked??

In Factory unlocking you can unlock any firmware of any iPhone. There is no restriction of firmware.

Which Baseband Can be Unlocked??

In Factory unlocking you can unlock any baseband of any iPhone. There is no restriction of Baseband. Every baseband can be unlocked through factory unlocking

LINKS:

Factory Unlocking Bell Blacklist iPhone 4 8Gb

Factory Unlocking Bell Blacklist iPhone 4s 16Gb

iPhone 4

Supported Basebands :

04.12.02, 04.12.05, 04.12.09

Supported Firmware Versions:

6.0, 6.0.1, 6.1, 6.1.2, 6.1.3, 7.0, 7.0.2, 7.0.3, 7.0.4, 7.0.6, 7.1, 7.1.1, 7.1.2

And All Other Firmwares & Basebands Of iPhone 4 Are supported !

iPhone 4s

Supported Basebands :

1.0.11, 1.0.13, 1.0.14, 2.0.10, 2.0.12, 3.0.04, 3.4.01, 3.4.02, 3.4.03, 5.0.00, 5.0.02, 5.2.00

Supported Firmware Versions:

5.0, 5.0.1, 5.1, 5.1.1, 6.0 , 6.0.1, 6.1, 6.1.1, 6.1.2, 6.1.3, 7.0, 7.0.2, 7.0.3, 7.0.4, 7.0.6, 7.1, 7.1.1, 7.1.2

And All Other Firmwares & Basebands Of iPhone 4s Are supported !