Question about Nokia N70 Cellular Phone

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N70 problem n 70 is when i am switch on phone means its coming plain display. and already put goot paste and slowly heated in cpu also now also having live that only

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First u should must be open disply strip and till then clean displey sarounds and check any spungh thare if u don't have any dust untill clean and fix display after chek it u have possitive result antill yhen change disply connector

Posted on Jul 14, 2008

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Normal start and after that blue display (screen not coming)


check have this time call in & going.if ok call so display damage, try clean & heat cpu,display ic.if call in & going not so software problem.

May 31, 2012 | Nokia 2610 Cellular Phone

3 Answers

My nokia 2700 is not starting up , it got disconnected while updating , now its not switching on.. what shout i do plz help


problems or trouble typically found on mobile phones can be categorized into
Three damage categories, namely:
1. Software Problem category
2. Hardware Problem category
3. Problem Category his SW and HW
Phone problems and solutions
1. Total dead cell phone
Mobile phones exist three kinds of die total, die total because of
· Die alone,
· Total death due to falls, and
· Death total for the taxable water.
a. Total death because death itself.
Handling:
The first can be done early steps following
- Remove the battery and plug in again, or try using another battery and try turn it
- Check the battery connector and try the press to see the level of flexible or not,
replace damaged when new.
- Connect the charging of the phone, when the indicator on the phone in and still will not turn on, then obviously you can not live on mobile phones because of interference from IC PA (Power Amplifier). After IC PA revoked your mobile phone can turn it on again. And so no signal will be installed a new PA IC.
- When the tide does not exist and charging indicator on the phone still does not want to live on should be conducted further tests using power supply. But there may also have an ugly tin on the PCB, remove the IC PA solution, then clean the tin on the PCB where IC PA stick, replace the old IC PA, HP switch, it must be a flame.
Examination with power supply:
Necessary power supply on a scale of 1 ampere ampere (A) or 1000 mA.
With the aim that the examination can be more easily and clearly.
The steps are as follows:
- Connect the cable from the power supply to the mobile phone battery connector of at least three wires, with a negative sequence, BSI and positive. (Black, green and red)
- Navigate volt power supply at 3.6 V (or in accordance with tolerance Hp-0.5 V)
- Mobile phones in the state of OFF, and press the button on
- If the current (amperage) in a digital ampere dipower supply pointer when the button is pressed on, it just means there's still a problem on its hardware (HW), it is necessary to check the components on / off until the battery.
- When the ampere when the button is pressed on, up about? 50 mA, then the problem that occurs is a matter of software (SW), then you need to do is re-programmed HP (flash) or program is upgraded to higher versions.
b. Total death from falls.
Handling:
- HP may not be tested by using the power supply, but HP should be dismantled first, heated, and repositioned back to the location / position of the components has changed as a result of HP fell.
- After that, the new HP using the power supply should be tested to determine damage to the Hardware (HW) / Software (SW).
- Most likely a damaged components as a result of the fall is the HP PA IC / IC Power.
c. Total death due to hit the water.
Handling:
- For taxable HP water is also the first time should not be tested by using the power supply, because the risk of short circuit occurs between the components in water, but must first HP divakum, heated, or by first diblower given IPA cleaning liquid, can also use the grain silica to absorb the water that existed at HP.
- After HP confirmed it was dry, then we should use the power supply to determine the damage occurred on the Hardware (HW) or Software (SW).
- At HP's exposed to water, usually there is damage to HPnya accessories.
2. Total die because of IC phone UI.
In HP's case like this then requires test equipment that is power supply.
The steps are as follows:
- Connect the power supply on the phone, give the voltage (volts) equal to 3.6 V (or in accordance with tolerance Hp-0.5 V)
- At the time the phone is in off state, refer to the power supply needles amperes will increase by 100mA.
- The phone will start, LED lights, VIBRA vibrate.
Handling:
- Remove the IC UI, then turn on the phone.
- Then there is the display on the LCD mobile phone "Insert SIM Card".
- Put new IC UI.
- Turn on the phone, the phone will work fine.
3. Total dead cell phone because the CPU IC.
To determine whether the cell phone because the IC die total CPU is as follows:
- Give the voltage (volts) on the phone by using the power supply of 3.6 V (or in accordance with tolerance Hp-0.5 V).
- At the time the phone is not turned on, the needle ampere silent, but if the phone is switched on then the needle will rise 100mA amperes.
Handling:
- If the IC CPU is still in good condition, then we only need to heat the IC CPU by using a blower, but if the CPU IC is damaged, then we need to replace with a new CPU IC. Before we replace our CPU IC must first have the anti-hot glue and liquid glue crusher anti-heat, because the CPU IC is protected by anti-heat glue, after we destroy the anti-hot glue, then we can heat (blower) CPU IC for a new replacement. Similarly, after we replace it with a new CPU IC then we need to give more anti hot glue to protect the new CPU IC we replace it.
4. Total dead cell phone when we call.
For testing we use the power supply by way of:
- Connect the phone with power supply, give the voltage (volts) equal to 3.6 V (or in accordance with tolerance Hp-0.5 V) on the phone.
- Needles amperes will not move when the phone is still in a state of death.
- We turn on the phone and then used to make calls, then the needle will show the number of amperes above 400mA.
Handling:
- Replace with a new IC PA, after re-testing was done as above, if the needle test results show the figures below 400mA amperes, the phone is in good condition.

Aug 26, 2011 | Nokia Classic 2700 Cell Phone

1 Answer

Few days before, my blackberry8310 falldown in the watersink.i put the heat lamp for some time.now phone is taking the charging but display are not present on the screen. pls solve the...


Friend,

With the heat on, you may have burnt something inside. Whenever you get your phone wet, always remove the battery and SIM immediately and use the hair dryer without heat. Just plain dry cold air. Blow air into it for a very long time to remove all traces of water. Then power on the phone. It may work. You still may have a chance to save your phone. Do blow air through the phone.

Dec 27, 2010 | Cell Phones

2 Answers

My iphone repeat restart


you already try to restore

Sep 14, 2010 | Apple iPhone Smartphone

1 Answer

The sceen wont come on my nokia 2760 can sume one help me ?????


if screen does not come on what do you actually get a plain white screen means then its a problem with display IC alone if it remains dark you may have to change the display

Aug 06, 2009 | Cell Phones

1 Answer

Wrong software message seimens a55


This message means that the values read from the configuration memory in the phone don't match the ones that were expected - assuming that the firmware hasn't been modified the most likely cause is a bad connection on the baseband CPU or flash memory.

If you are feeling daring and you have a hot air gun, you could try (carefully!) reheating the chips and see if that fixes it:

The baseband CPU is the big square chip marked "Infineon" and the flash is the one to the right of it - this area normally has a screening can over it, so you need to remove that and also remove the keyboard and display that's attached to the other side of the PCB, since they don't like being heated up.
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Jul 01, 2009 | AT&T Siemens S46 GSM Cellular Phone

1 Answer

My BB Curve got wet this past weekend and now when


Place your Blackberry into a plastic bag with a half of a cup of uncooked white rice.
The rice will help absorb moisture from the inside of the phone.
Leave it there for a few days and try it again .
don;t use the phone right now at all, putting power into a wet phone can and will make it worse,
take the battery out and do the rice thing.
if you have a week wait a week and remove it from the rice.
Good Luck and Thanks for using FixYa

Jun 16, 2009 | Cell Phones

1 Answer

Display problem


What phone is it?

Nov 15, 2008 | Cell Phones

1 Answer

My inside display is not working. - Motorola Razr V3


you need to take the phone to a mobile service center and have them replaced the LCD for you.

Nov 01, 2007 | Motorola Mobility RAZR V3m Cellular Phone

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