achraf.amrar :
what you think about that cpu it has the same :
Socket G3 946
Power: 37 Watt
Processor Graphics : intel hd 4600
https
/www.amazon.com/Intel-Core-i7-4702MQ-SR15J-Quad-core/dp/B00PZMNMX0/ref=sr_1_2?ie=UTF8&qid=1533650826&sr=8-2&keywords=i7+4702mq
You can try it, just remember that there are no guarantees that it will work. There are usually videos on youtube on how to disassemble many laptops. To replace a CPU, you will have to pretty much take apart 80 to 90% of the machine.
You will need a method to keep track of what screws come from which holes as there are different lengths.
(Don't forget to double check your BIOS version and upgrade to the latest, if necessary. You can do this with CPUz, on the mainboard tab and compare it to the version on Toshiba's website.)
You will need:
A set of small phillips head screwdrivers
A non-metallic, thin, wedge tool to pry the case apart
Isotropic alcohol (The higher the concentrate the better, this is to clean the old thermal paste.)
A good thermal paste, I use and recommend Arctic MX-4. (This will be used on both the CPU and GPU)
There will be a lot of cables, you might want to use a camera to take pictures of how they are run and were things are, as you go. Also remember that if you try to remove something and it's not going, look over it carefully, you may have missed a screw. Most things should separate fairly easily, only the case itself should put up much resistance.
The first laptop I took apart like this took me over 2 hours, because I took it very slow and was methodical. Leave yourself plenty of time and I can't stress enough, keep track of everything and it's place.
It takes a lot of work and patience for this type of upgrade, but it can add some longevity to the laptop, if successful.
Note: They have that CPU on eBay for around $70 used. I've bought about a dozen used CPU's from eBay now and have had no problems.
https/www.ebay.com/sch/i.html?_from=R40&_trksid=m570.l1313&_nkw=Core+i7-4702MQ&_sacat=0