Please im biging u

Look for the power button/switch on the monitor

Buy an android phone............

Sounds like your battery is shot. If it goes to far past dead, it will not power up even plugged in. Go to a battery store/Best Buy etc. and see if they have one you can use to try. Certain battery types can not go under 25% of a charge or they will not charge again correctly and vice versa. Just a short in the dark but hope that fixes your problem

Unplug the main battery, and press the power button for 15 seconds. Plug in the battery, plug in the battery charger and press the power button. If your laptop does not start, then there is something wrong with the motherboard (it is dead).

Check to see if there is some way to reset the phone electronics. Otherwise you are SOL!

You didn't post the Make, Model of Laptop or the OS you are using. I'll use a Win 7 solution. Boot the Laptop, open the Control Panel, select Power Options, set to High Performance, select Change Plan Settings, set SLEEP to Never, select Change Advanced Power settings, go through the settings , set SLEEP and Hibernate to Never, Power buttons and Lid to shut down. Always shut down and unplug your laptop when not in use to prevent damage from power surges and possible Fire hazard IF the battery malfunctions. A reboot every day will reset the computer.

bull 5 years, you bought with lies of amazon. 2008 made is 10 years to 2018. and all batteries are dead, CMOS and big one
worse big one shorted,
?
or is owner ship duration? 5
rule one remove that relic old huge battery first and run on AC power pack alone(even forever)
what you did is backwards, totally battery is the last test after the whole PC runs perfect again , see?

lenovo R52-nnnnn NO nnnnnn told. sadface.
try are
ThinkPad R52 Series
(MT 1846,1847,1848,1849,1850,

1858, 1859, 1860, 1861, 1862,

1863, 1870

12 PC based off R52, laptop.

still screen dead right, say screendead or black %100
say of fan blowds
tell beeps or flashcodes of any LED
or text errors to screen
and if BIOS is dead.
if all that dead that is power failing
we push the power button for 10 full seconds and release
that is the intel super secret safe reset.
still dead 100%
battery big still out, keep it out.
and AC pack disconnected for overnight
this is the HARD power reset.
this reset undoes power surge and latchup events.

still dead try new AC power pack did you use the wrong pack
shine flash light on screen see data CCFL tube are dead.
as all are this old frankly , die at 20,000 hours many do;

power pack 16vdc 72watts 4.5amps, only
wow free schematic leaked out,whooo hoooo

https://manualmachine.com/lenovo/r52/8197122-schematics/

its just a matter of batteries...some are not powerful enough to operate the camera ....Try to change them and buy some real good ones..like Duracell or Tatra...do not make any compromises when buy the batteries...get the best cause these kinda cameras really require powerful ones...or ...try to get a set of rechargeable ...

You need to use lithium batteries which last ages. This is a sign that battery power is low. It happened to my camera and I took it to get fixed. All it needed were more powerful batteries!

grrr i have that same problem.... it wont TURN ON!!!