Hi just got a tc 4400 from my brother and I can't turn it on I slide the silver on button the lighting bolt flahes but does come on ,i have taken the batter out thinking it would help it did once but no more please help
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How do you know the battery is good? does the multimeter really read more than the battery should give, according to what is printed on it?
A 3,7 volt battery, should give at least 3,8, wham not connected. A 7,2 at least 7,4. Because the printed voltage should be on the connector, when you are discharging the battery.
When your charger is blinking, it could indicate the battery is not well. The Ri can be to high or something else, is wrong, and that is ht the charger won't or can't charge.
Whenyou connect the power adapter into the laptop, does the power LED lightup? If not then -
The battery adapter or the adapter's power lead or the laptop's powersocket could be faulty.
Check power adapter's DCplug that connects into the laptop power socket with a multi-meter, the voltageshould be slightly higher than the voltage that is printed on the label on thebottom of the adapter. If the voltage is zero or way below the voltage that isprinted on the label then the power adapter is faulty and needs to be replaced.
If the adapter is OK thenconnect it to the laptop and power it up, then look at the power/batterycharging LED light and wriggle the power plug in the laptop's powersocket. If the power/battery LED light flashes and in a certain position thisLED light stays firm, then the power socket is either faulty or it has a drysolder joint where it is connected to the motherboard.
This can be repaired but itrequires the laptop to be completely dismantled to get at this power socket andrepair. If you cannot DIY then I suggest you get a quote first.
This sounds interesting. Are you ordering the part from HP? If so, they should be able to provide the part number. Otherwise, you will have to get hold of a repair manual- they have the parts lists. Here is a phone number for HP Support: 800-HP invent.
The tablet buttons can be disabled to stop your screen from rotating. Go to Control Panel > Tablet and Pen Settings > Tablet Buttons > select the rotate button and click change > select "None" on the drop down menu.
You can actually short out the on/off circuit with a flat head screw driver. I have to do this until I can find somewhere to purchase a replacement sliding switch to attach to the new motherboard which I have waiting to be installed. Alternatively purchase a cheap docking station off ebay
Please let me know whats the OS you are using. If you are using XP it is a relatively simple reset procedure. However if you are using vista the easiest way to get rid of it would be to re-install the OS.
The THERMAL PASTE which bonds your laptop's heatsink and cpu together is not good. It will not obsorb the heat good enough, which causes your laptop to OVERHEAT from time to time... Have someone re-apply a new thermal paste on it then it will be fine...
- I've worked on laptops and desktops for 10+ years. Take my words for it.
Another way to adjust the screen brightness is to hold down the Functin key (blue, Fn) and then repeatedly press the up or down arrows (which also show the symbol for screen brightness on the keys in blue.)