Help Galaxy s4 wifi issues, hardware to blame?

[z_vital]

I purchased my Samsung Galaxy s4 over the summer and since Ive had the phone the wifi has been funky. The wifi will connect, but the signal is never strong, no matter how near or far from router. Also, a notifcation saying my wifi connection is unstable appears frequently when I am actually able to get wifi connected. I have tried many of the software "fixes" found on youtube ect. and nothing seems to make a difference. Just wondering if it would be worth my while to look into replacing the wifi hardware in the phone. I just want my wifi to work well, as Ive been eating up data as a result of lost wifi. This issue has cuased hours of frustration and any help will be appreciated.

Any help, opinions, stories of similar situations, ect. are greatly appreciated.

Thanks in advance,
Z_vitali

 

[allanlaw]

This may take a while.

1. Does the phone work well on other wifi networks?
2. Do other devices in your house work well on your wifi network?

Standing by . . .

 

[z_vital]

This may take a while.

1. Does the phone work well on other wifi networks?
2. Do other devices in your house work well on your wifi network?

Standing by . . .

The issue is not effected by which network I connect to. Other devices seem fine, even my old cracked and beat up iphone 4.

Thanks for the reply,
Zach

 

[LaTuFu]

It sounds like a hardware issue. Is the phone under warranty, or did you buy it used?

 

[z_vital]

It sounds like a hardware issue. Is the phone under warranty, or did you buy it used?

I bought it used, but am willing to put money into having the issue resolved if possible. I am fairly tech savy and have worked on iphone repairs for friends and family for years. Any idea what parts would need replacing? Instructions for replacing? or What professional services who would handle the repair?
I live in Boulder, CO and have contacted one phone repair store however they seemed skeptical about doing the repair for me. Any advice on how to proceed?

Thanks all for the responses, I greatly appreciate everyone of you giving some of your time to help me resolve this issue.