The U.S. version of the triple network 4s cannot be upgraded with electric signals

Hello! Hopefully, the following will be helpful to you.

1.You need to confirm whether the phone has a lock version, some phones have a built-in card, and the card has compatibility issues with the system version. The new version of the system may not be able to support the original card sticker.

2.If the phone is unlocked, you can use the telecom card and try to update the system firmware again.

3.China Telecom recommends that users choose the telecom version of the iPhone, and they can also get a high phone bill for the contract machine in the Anhui Telecom online business hall, and they can enjoy 0 yuan to buy the phone, which is more favorable than the bare metal!

Change the sky wing 4G! "The new No. 177 segment is paired with a popular 4G mobile phone, allowing you to enjoy a faster, more extreme, and unique experience! For more exciting content, please pay attention to Anhui Telecom's online business hall.

Many U.S. phones have problems like yours and can't give a perfect solution. Mobile phones with informal channels may not be able to perfectly support the use of telecom networks (first of all, the network standard does not necessarily support telecom CDMA networks, and a considerable number of foreign operators will lock their mobile phones to use their own SIM cards, unable to use the numbers of other operators, and various problems will arise due to immature technology after unlocking), and the quality and after-sales are not guaranteed.

It is recommended that you log on to the online business hall of Anhui Telecom to buy the CDMA standard iPhone of the Bank of China, if you still have questions, please continue to ask. Have a great day, thank you!

Hello! According to your description. The analysis is as follows.

First, plug the card back in and out and restart the phone.

Second, replace a card in use, if it is normal, there is a problem with the card, go to the business hall and ask the staff for help.

Third, the problem of replacing the card is still the same, go to the mobile phone after-sales, please help the staff to solve the welcome to log in to Guangdong Telecom mobile phone**know the enterprise platform to ask questions to customer service, or search for "Guangdong Telecom mobile phone**" to learn about the latest preferential models. We look forward to your adoption. Thank you.

Dear Telecom users, Hello! According to your description.

Introducing you: iPhone 5S (16G) Touch ID Fingerprint Sensor New A7 chip with 64-bit architecture Improved iSight camera and ultra-fast Wi-Fi are now available.

You can buy this phone at Guangdong Telecom Mobile Phone**. Welcome to log in to Guangdong Telecom Mobile Phone**Know Enterprise Platform to ask questions to customer service, or search for "Guangdong Telecom Mobile Phone**" to learn about the latest preferential models.

Reply to s23921985's post Telecom card I know the reason Take it and I'll help you get it.

If there is a lock, it is unlocked with a card, **SMS can be used, but it is not possible to surf the Internet.

It should be locked Go to the next telecom APN converter to try.

Same as mine, I'm back anyway.

The U.S. version of 4S can not be upgraded to the telecom card, due to the upgrade of the firmware caused by the phone is locked, does not support the China Telecom card can not be solved at present, can only wait for the new version of the firmware unlocking scheme to come out.

4S is a locked version of the mobile phone, you need a card to play**, a system version corresponds to a card, so if there is no ios7de card, resulting in unusable, it is recommended to buy licensed telecom mobile phones to ensure the normal use of mobile phone functions.

iPhone 4S is a touchscreen smartphone launched by Apple, the fifth generation of iPhone. It was held on October 4, 2011 Beijing time in California, USA'At the new product launch conference of S Talk iPhone, this new generation of iPhone running iOS 5 system was announced.

You've just leveled up, right... If the phone is locked, you need to replace the card after upgrading. You can go to x*treasure to take a look, there must be some, many people have already changed. However, it seems that the 3G network is not available at the moment.

Dear users, the two operators of Sprint and Verizon have locked phones using MRSIM to unlock the situation:

1. Perfect for China Mobile and China Unicom, perfect for jailbreak telecommunications;

2. Mobile, Unicom can be **, SMS and Internet access, and some areas of telecommunications are available (specifically related to telecommunications, children's shoes can only be self-tested);

3, mobile can be **, SMS and Internet access, China Unicom 2G mobile, 3G can be **, can receive SMS, can not send SMS, the operator does not display, telecom individual areas are available, specific areas with telecommunications;

4. After the release of the perfect jailbreak, with the jailbreak source, you can have three perfect networks, just like that!

During this period, the region is not supported, please wait patiently for the card program to be upgraded.

Therefore, if you have a lock plate, you will need a card sleeve to use it;

iPhone is currently bare metal in China** may be higher than the overseas version due to tax issues, but the Bank of China is safe and reliable, and it is a perfect fit with domestic operators, and at the same time, the contract opportunity to get a large amount of phone bill subsidies, compared with the two, the contract machine is more cost-effective;

The reasons and solutions for not being able to access the internet are as follows;

1.If you can't access the Internet if you don't turn on cellular data, turn on the data switch.

2.If you can't access the Internet if you don't enable data roaming, you need to enable data roaming on cellular data before you can access the Internet.

3..If the mobile phone card is damaged and you can't access the Internet, go to the local business office to replace the card.

4..If you are unable to access the Internet due to a system failure, restore the network settings or flash your computer.

It's no problem to play ** and send text messages, wifi can also be on it, but it can't be on 3G, the merchant said that my telecom sim card is an old version so it can't be used, and it needs to be changed to use. Is that really the case? Ask the masters!

PS: My previous Android phone was also the same card but it can be on 3G!

Dear Telecom users, Hello! According to your description.

If you need to check the bill and pay the phone bill, please log in to the online business hall of Anhui Telecom.

Telecom's iPhone has a 3G logo but can't access the Internet. Use a hand-knitting tool to change the account number. If you don't have the 3G logo, turn on data roaming. No problem guaranteed!

Hello! Based on the information you provide. It is recommended that you check whether your mobile phone is set correctly and whether the surrounding network signal is normal.

You can try it in an area with a strong signal. If the problem persists, it is recommended that you go to the after-sales service of the mobile phone and ask the engineer to help you solve it. Hope it helps.

Thank you. Anhui Telecom Network Hall looks forward to your login, consultation and viewing. And I wish you a happy life.

If it is an unlocked version, it is possible to use a telecom mobile phone card, and if it is a locked version, it cannot be used.

China Telecom 4G has been officially commercialized, if you need to check 4G tariffs, check bills, pay phone bills, and buy mobile phones, please log in to Anhui Telecom's online business hall. Have a great day!

Mine is the US version of 5s, which is also a telecom card, and this has not happened. It should be a problem with the local operator, consult with other **.

Is it a card, or a built-in card?

Hello! Hopefully, the following will be helpful to you.

If your mobile phone is the Verizon version of the United States and is unlocked, you can directly insert a China Telecom UIM card to use it. Theoretically, it supports triple play. Support China Telecom 3G network.

The mobile phone of foreign sources may not be able to perfectly support the use of telecom networks (first of all, the network standard does not necessarily support telecom CDMA networks, and foreign operators will lock the mobile phone to use their own SIM cards, unable to use the numbers of other operators, and various problems will arise due to immature technology after unlocking), and the quality and after-sales are not guaranteed.

Hope mine can help you.

For more information, please consult the online business hall of Anhui Telecom.

Telecom broadband free speed, 4m liter 8m, 12m, 8m liter 20m, 20m liter 50m. You can go to the nearest telecom business hall, or call 10000 for free speed, details can be logged in Anhui Telecom online business hall.

Have a great day! Hope mine is helpful to you and can get yours!