Practical Solutions and Repair Contact Retailer Phone Startup Failed

Often we are faced with a problem like this, ie "Phone Startup Failed, Contact Retailer". When facing this kind of damage cases on your phone, no need to panic, because it can so you can fix it yourself after reading the following article.
Below are tips and tricks to repair damage to mobile phones such as contact retailers, phone startup failed, and others associated with damage to software
Contact Retailer is common on Nokia phones that have Symbian operating system. Known as the Nokia Series 60 or class of WD2 and BB5. why did this happen? This is because the phone memory is broken or damaged data in it. So that the corrupted data before it can cause contact retailers. The reason could be from too many stores data so that memory becomes full, an error installing the application, the phone is dropped, hit the water, and so forth.

The first step is done to repair this damage is to do a soft format or hard format the phone. If the phone is sometimes still can boot perfectly, then do a soft format by pressing * # 7370 # then enter the lock code 12345.
This process will erase all data on the phone that causes this problem. But normally Contact Retailer can not complete the boot up can not suppress the Reset code, then the next step is to Hard Format. This code can not be performed on all phones, only certain phones that can use this code. In the Nokia 6600, 7610.6670 and 3230 can be hard format by pressing the four buttons that Call button On / Off * 3 when the phone is turned off, until the phone turns on and do the formatting process to complete. After formatting is completed, the mobile phone screen message will appear insert sim card or insert a sim card, if during the process you use the sim card after formatting is complete, the phone will display the menu on the phone. Before performing the above format, or MMC external memory should be removed first in order to prevent the occurrence is not compatible between the mobile phone with the MMC.
In the new BB5 Nokia class, can also be done this way.
In class Communicator (9210,9300,9500) in a way to do it by removing the battery first and then plug battere back and immediately press Ctrl Shift F to confirm Formatting window appears.

The format in nokia 6600 manually using the Call Button code + On / Off + * + 3

When the formatting process is completed manually, it's likely to return to normal mobile phone.
The next step is to do the formatting using the User Area Flasher Box compatible. Many types of boxes that can do it, among others, UFS3 Tornado Flasher, Griffin, MT Box, JAF, PBB, UB, GTI, and others. With these tools can do the formatting process as well as factory default to erase user data area and restore the phone back to the default position. Reflashing process can also be done to upgrade the firmware on the phone to improve and fix bugs in previous firmware versions. After the flashing process is complete if performed Invalid Sim Unlock then click Apply to finish.
With Box, the information can also be checked IMEI on the phone. If the phones IMEI?? significant damage to data on the IC UEM or Flash IC. In other words IMEI UEM and Flash is not the same anymore. Do Read UEM to check the condition of UEM, if still appear? UEM damaged already ascertained. However, if the UEM IMEI read it, then the solution is to Rebuild IMEI in Flash IC with the same IMEI RPL file with the UEM with a road to his calculations.
The following improvement measures using the tornado :

As an example of using mobile phones nokia 6670
1. Connect your phone to a tornado using a cable box flash for Nokia 6670. Make sure the cable is functioning and no pins are damaged as well as the programming interface on the engine PWB clean and undamaged.

2. Connect the box was also a tornado to a computer using a USB cable.

3. Turn on the computer and activate the tornado software for Nokia latest version of DCTX_UFS by selecting a short cut on your desktop screen or from the start in program files.
 
4. Turn on the computer connection to the tornado box by selecting the connect command in the display DCTX. When this process occurs TX and RX LED lights on the box until the display flashes tornado software version in the tornado box is displayed on the screen process / result.
Nokia 6670 mobile phone product in the folder next to the folder contained WD2 DCT4. If the mobile baseband UEM and UPP are not damaged, by selecting a check box on autodetect product followed by pressing the info then check its mobile product will automatically be selected based on MCU and PPM software in EEPROM / Flash.

6. Next do the command boot up by pressing the check button on the phone. If the process is successful then the appearance of 1st boot ok, WD2 UPP. xxxx repowering Mobile will appear in the box result / event if an error message appears then the baseband UEM damaged.

7. Press the info button. All information software MCU, PPM to the network will be displayed in the result / event. In this case study found the display difficult to display info. Frequently interrupted only MCU and PPM software information are displayed while the other info does not appear.

8. Do the process over and over then check and info can be displayed with complete info. Damage like this with symptoms difficult to read the information on the process info is caused by damage to the MCU and PPM Sotware or hardware that is UPP or IC flash. Generally, mobile phone or not is difficult to enter the local mode / local mode error.

9. Perform replenishment latest firmware version on the MCU and PPM flash Nokia 6670 with the process. If found failures in the process of doing the elimination of flash EEPROM using Flash erase facility. Select the firmware by selecting the older firmware versions.

By doing Erase EEPROM and income of different firmware still found the display message "Contact Retailer" at the Nokia 6670 this. Likewise, after doing a master reset with * # 7730 # and formatting phone with 3, *, the call key and press the switch on time.

By doing all of the ledge above the damage can already be allocated not on the Nokia 6670 mobile phone software but broken at the base band.
The next step open the phone to remove the engine casing. After doing a visual check on these machines are found in the engine was new and clean condition has never been in service. Micro BGA Rework connection to the IC in the baseband IC power begins with UEM still gives the appearance of the "Contact Retailer". Rework (re solder through solder vapor) is conducted with the flux, the hot water temperature, air pressure, distance and time are optimal. Errors in the process of rework to make mobile phones more mobile fatally damaged again even die at all and can not be repaired again. If you are unfamiliar or less experience in the construction process of a micro BGA rework it should not try it because the latest Nokia mobile phone-type output in 2005 was complemented by a micro BGA that is free of lead and thus require a higher temperature in the process of reworks. Our experience in 6670 and 7710 rework with uncontrolled temperature make the machine mobile / PWB charred and damaged by bending. Resulting in broken lines in the inner layer PWBs. If you do not believe in this rework should be handed the phone to the nearest service center with experience.
Next rework on the CPU / UPP with a pre-determined parameters such as above. The results this rework process that can overcome the damage the "Contact Retailer" in this Nokia 6670 mobile phone. After the process will return to normal mobile phone and can get into the phone menu without any shortage or damage to a chain effect caused by damage to micro-BGA in the UPP.
With this case study can be concluded damage to the "Contact Retailer" at the Nokia 6670 mobile phones are already equipped with multimedia applications is not just damage to the software alone but also of the hardware related in particular baseband CPU / UPP. Damages because the software usually will give the appearance of the "Contact Retailer" tatapi permanent damage to the hardware UPP if this message does not remain normal mobile phone occasionally and without warning to give the message.
Symptoms such as these are usually confusing to users of mobile and difficult to engineer in the analysis of damage, because damage occurs is uncertain due to intermittent system on the phone. Shortly normal phone message the next time damage. Damage to these symptoms can cause a fatal condition that is dead because of wrong cell phone along with the handling and analysis was not possible to be repaired again as it requires an extremely high cost equal to the price of similar new cell phone.
Once again we suggest that if you lack experience in micro-BGA rework at UEM and UPP should leave it to the phone to the service center with experience to avoid the risks as above.
The final step is damage to the hardware phone which is usually caused by the phone memory is IC Flash and RAM. Especially Flash IC 1, which stores user data area. Do Erasing Flash 1 with 02 million until 027FFFFF address, in case of error Erasing likely damage to the Make Flash IC Flash IC replacement and after that flashing process again.