AFTER REMOVING SEVERAL SOFTWARE IN CUDIA, THE IPHONE IS DIRECTLY OUT OF SIGNAL!!

The landlord's situation should be to delete the ultra snow cracking software (ultrasn0w),Reinstall it and restart it.。 There are two ways to install: 1. Install with Cydia, open Cydia>> manage>> software source (source) >>edit) >> add (add) >> input source >> Done Go to Serch and search for Ultrasn0w, and then click Install.

Let's redo the system, the system software has been deleted.

incompatibility between the Software and other collection software; Or maybe it's the phone that's poisoned.

Exactly the same question as mine! It used to be fine, but now it's all of a sudden, and I have to restart every time to get a signal, and then after a while it's gone! I don't know how! It's annoying!

Delete the software and try it by restarting.

This method is the most effective when restoring the firmware. But only if you make sure your phone is unlocked. Otherwise, be careful and look at the system version.

It turns out that Apple also has a lot of problems. You can't be blocking the antenna.

In addition to the problem of system software update, re-flash the machine! Connect iTunes and enter recovery mode recovery.

This is also the case with my phone, I turned it off in the middle of the update, and then there was no signal all the time, please ask how you solved it!

Try resetting your network settings.

It may be that the system software is deleted at the same time when it is deleted, resulting in the phone running abnormally, I don't know if your phone has been backed up, if it has been backed up, you only need to restore the old one, you need to restart the phone without backup, set it to the initial, if the device is not normal, you can restore it again to the iPhone monopoly.

Oh my God......Can such an answer be recommended? iOS is a closed operating system, even if you jailbreak it, you can't delete the system-level software at will! According to the situation of your phone, your phone must have a lock and then unlocked, and it may be cydia that you deleted, but I really haven't encountered a ...... of deleting a program and there is no signalThe easiest way is to re-flash the jailbreak to unlock,If not, BBS,There is a detailed tutorial。

If you want to go to the so-called iPhone monopoly (there are only 2 real monopoly stores in China, and the others are private shops under the banner of monopoly) to repair, it generally costs 100-150 yuan, and you can learn it in half an hour, so why spend money?

The Smartphone Gamer Alliance team has you covered.

Press power+home together for ten seconds. Without entering recovery mode, this is the most straightforward.

Let's take a look at what your current baseband version is. In Settings.

General about this unit.

You can see it in the modem firmware.

iphone

3GS 3G [firmware].

Baseband] to [Baseband] to unlock [firmware].

Baseband] to [Baseband] to unlock [firmware].

Baseband] Super Snow Unlock [Firmware].

Baseband] Super Snow Unlock [Firmware].

Baseband] Super Snow Unlock [Firmware].

Baseband] is unlocked in the ultra snow.

Depending on the iPhone model, if it is the Hong Kong version or other unlocked version of the SIM card system and the Chinese general one, the American version or other locked ones need to be cracked or carded. The specific situation depends on the specifics, it is best to buy the unlocked version and there will be no problem, and you will learn by yourself when you have an iPhone in the future.

At present, there are two reasons why there is no signal after the firmware upgrade: first, the lock code machine needs to be cracked again after the upgrade to be used normally, and the current cracking program does not seem to have been released, so the lock code machine should not be in a hurry to upgrade; The second is not a lock machine, but there are many machines that have been upgraded recently, Apple servers may not be able to respond, so they can't be activated normally, in this case, just try a few more times.

Generally speaking, as long as it is not a card machine, it can be upgraded normally. 3GS has just been launched, the first batch does not have Hong Kong, but there is Taiwan, it is recommended that you wait, or buy the Hong Kong version of the unlocked machine.

There is no signal on the phone, you can see what caused it and fix it by the following methods:

1. Check whether the SIM card is inserted into the mobile phone: you need to insert the SIM card to connect to the signal.

2. Check whether the mobile phone card slot or SIM card is damaged: you can insert other mobile phone cards to try, and then put the SIM card of the mobile phone itself on other mobile phones to see if there is a signal, if the card slot is damaged, it is recommended to replace the card slot, if the SIM card is damaged, please go to the business hall to replace the SIM card.

3. No service on the mobile phone caused by network delay: You can turn on the airplane mode of the mobile phone, turn it off after five seconds, or restart the mobile phone.

3. If the signal in the place is not good, the signal cannot be found, so you can search in another place.

Restart your phone first and see if the signal is restored.

If it doesn't work, go to the settings, reset the mobile phone network settings, if this still has no effect, restart the phone deeply, press and hold the power on and off button + home keyboard. Don't move, for more than ten seconds, until a white apple appears on the phone, let go...

If this still doesn't work, go to the mobile to get a new card, because the iPhone has higher requirements for SIM.

If you misunderstand all of the above, go to the maintenance department.

The same tragic thing happened to me and you! Solve it with precious treasures.

Don't worry, is there a change card to try?

After escaping the prison, the plug-in is used.,It's equivalent to a browser.,It's not related to the signal.。

The newer ones are miserable. Chinese still buy licensed goods! I updated it twice, once 500 oceans, once 350 oceans, and since then I have seen this mobile phone, and I want to smash it.

The system has not been upgraded, it would be good to be able to boot up, go to the after-sales service to repair it, or directly use itues to restore.

The phone is stuck! Check it out at a repair shop.

If you can't turn it off and turn it on, you have to flash it.

It may be that the contact with the SIM card is loosened, and it is recommended that the landlord take out the card and go into it if it really doesn't work, try someone else's card to see if you can still read the SIM card, and then you can only go to the after-sales service.

Now 4S can be dismantled casually...

Just repaired back, I am a telecom card The steps are as follows: remove the battery and turn it off, test it with a Vientiane meter and install the battery. Insert the SIM card to turn on,At this time, it is not easy to tune the "time and date", and after n attempts, I still can't adjust the time and date of the day.

If I change a mobile card, there will be a signal, prompting to activate, because the mobile card activation failed, at this time the time and date are correct, and it is OK to replace my telecom card. This method does not necessarily work for this failure.