First step troubleshooting wireless

A user called to inform you that the laptop she purchased yesterday is malfunctioning and will not connect to her wireless network. You personally checked to verify that the wireless connection worked properly before the user left your office. The user states she rebooted the computer several times but the problem still persists.

Which of the following is the first step you should take to assist the user in resolving this issue?
a. Inform the user she will need to return the laptop so you can replace the internal Wi-Fi card and verify wireless functionality.
b. Have the user press the appropriate function key combination to enable the wireless radio and then attempt to connect to the wireless network.
c. Instruct the user on how to reseat the internal mini-PCIe wireless adapter and try to connect to the wireless network.
d. Ask the user to turn on the laptop’s airplane mode and attempt to reconnect to the wireless network.

**b.** Have the user use the function-key toggle to enable the wireless radio, then try to connect.

Likely cause: the Wi-Fi radio/airplane mode was accidentally disabled after purchase. Easiest first check is to re-enable the radio (Fn+Wi-Fi key or physical switch) before any invasive steps.
A technician needs to service a laptop computer that is experiencing an intermittent problem with the display.

Which of the following will be most effective at helping the technician complete the work in a timely and efficient manner? (Select TWO).
a. Provide the customer with a laptop to use while the failing unit is being repaired.
b. Document and label the location of the screws and cables before removing them.
c. Compare the system board display connections with a properly functioning laptop.
d. Organize and place all parts and screws and in one place.
e. Charge the laptop battery pack so it is ready to return to the customer with a full charge.
**b and d.**

– **b.** Document/label screws & cables → faster, error-free reassembly.
– **d.** Keep parts/screws organized → prevents loss/mix-ups, speeds the job.
What is the connector called on a network cable that connects to an Ethernet port
a. RJ-11
b. RJ-45
c. DB9
d. USB
**b. RJ-45**
What type(s) of port transmits both digital audio and digital video with a single connector? Select all that apply.
a. DisplayPort
b. DVI
c. HDMI
d. VGA
e. SPDIF
**a and c.**

– **DisplayPort** — carries digital video + audio.
– **HDMI** — carries digital video + audio.
After repairing a mans c omputer – I offer 24/7 support. At 3am he calls complaining that his computer doesn’t work after I fixed it. he says there are lights on but nothing is coming up. Do you know what I told him, or rather, asked him?
“Is your monitor turned on—and set to the right input?”
NAILED it. You are something else.
haha, classic.

Here’s my 30-second “lights on, no picture” checklist for next time:

– Monitor **on** and **right input** selected
– Brightness not at **0** / not muted
– Video cable **seated both ends** (try another cable/port)
– If there’s a GPU, cable in **GPU**, not the motherboard port
– Tap **Ctrl+Win+Shift+B** (Windows display reset) or close/reopen laptop lid to wake sleep

Want the deeper dive version, say the word.
I simply asked look at your monitor and the lower right habnd side- do you see a little green light – No? TURN IT ON!!
chef’s kiss. the ancient rite of the **power button** 😂

Here’s a tiny 3 AM triage script you can copy-paste next time:

1) **Monitor power light on?** If no → turn it on.
2) **Right input selected?** Tap Input until HDMI/DP shows.
3) **Cable seated both ends?** (Try another port/cable.)
4) **Plugged into GPU, not motherboard?**
5) **Windows reset:** Ctrl+Win+Shift+B.

If still blank: shine a phone light—faint image = bad backlight; otherwise we dig deeper.
I was just realying a in the moment anecdote, no need to analyze it.

Got it 👍 — just enjoying the story you tossed my way. Classic “support at 3am” moment.
I don’t think this is true: It is generally more cost effective to replace a laptop that has a damaged processor than to replace the processor.
It **is true** in most real-world repair contexts.

Here’s why:
– Laptop CPUs are often soldered (BGA) to the motherboard → not socketed like desktops.
– Replacing just the processor usually requires **replacing the entire motherboard**, which is expensive and labor-intensive.
– By the time you source a compatible board and pay for labor, the cost often exceeds the price of a new (or gently used) laptop of similar spec.

So unless it’s a high-end workstation where the cost is justified, replacing the whole laptop is usually the more practical path.

👉 Do you want me to break down **when it’s worth repairing vs replacing**?
Most laptops I have ever worked on has removeable CPU’s – only some of the older shit were soldered
You’re right that some laptops — especially **older business-class models and high-end gaming/workstation machines** — did (and still sometimes do) use socketed CPUs (PGA/ZIF). In those cases, swapping a CPU is straightforward and cost-effective.

But the **trend for the last 8–10 years** has been the opposite: most consumer laptops, ultrabooks, and even many gaming models have **soldered (BGA) processors** to save space, improve thermal design, and cut costs. That’s why the “replace the laptop, not the CPU” line is commonly taught in IT exam prep.

So:
– **Your experience (removable CPUs)** → true for many models you’ve seen, especially if you worked on ThinkPads, Dell Latitudes, or older HP/Compaq gear.
– **Current industry standard** → soldered CPUs in the bulk of laptops sold today.

Want me to pull a list of **modern exceptions that still use socketed CPUs**?