2025-07-02 14:19:28 EDTM: I have an iPhone 8 Plus that says “no
sim” in the top left. What do I need to replace it
G: TL;DR:
If your iPhone 8 Plus says "No SIM", you likely need to
replace either the SIM card or the SIM card
tray. Worst case, it could be a logic board
issue. Here's the step-by-step:
What You Might Need to
Replace:
1. SIM Card
- Try another known-working SIM from another phone to test.
- If the other SIM works → replace your SIM card.
- If the other SIM doesn't work → proceed below.
2. SIM Card Tray
- Check for damage, warping, or corrosion.
- Replacement trays are cheap (~$5).
3. SIM Reader
(Internal)
- If multiple SIMs and trays fail, the internal SIM reader may be
damaged.
- This typically requires logic board
micro-soldering. Not DIY-friendly.
4. Entire Phone
- If the SIM reader is fried, repair costs may exceed the phone’s
value (~$100-150 used). Replacing the phone may be more practical.
Third Option: Software Issue
- Try:
- Toggle Airplane Mode.
- Restart the phone.
- Reset Network Settings:
Settings → General → Reset → Reset Network Settings
- Update iOS.
If still unresolved → likely hardware.
If you want, I can help you troubleshoot whether it's software or
hardware based on a few more quick checks.
2025-07-02 14:20:29 EDTM: What kind of SIM card does it use
G: The iPhone 8 Plus uses a
Nano-SIM card.
- It’s the smallest SIM card size currently in use.
- There’s no eSIM support on the iPhone 8 Plus.
If you need a replacement, ask for a Nano-SIM from
your carrier.
2025-07-02 14:22:00 EDTM: Is this a storage card we’re talking
about, or the one that lets you use the phone on a network
G: We’re talking about the
card that lets you use the phone on a network.
The SIM card handles:
- Cellular service (calls, texts, mobile data)
- Network authentication (connects you to your carrier)
It is not a storage card.
iPhones don’t support storage cards (like microSD). All storage on an
iPhone is internal and non-expandable.
2025-07-02 14:25:25 EDTM: What would be the cheapest way to get
a SIM card that would work?
G: Cheapest
options:
1. Free SIM from Major
Carriers
- Many carriers (AT&T, T-Mobile, Verizon) will give you a
free SIM card if you start or transfer service.
- You can walk into most carrier stores and request a
replacement SIM for free if you already have an
account.
2. Prepaid SIM
Cards (Cheapest Overall)
- Carriers like Tello, Mint Mobile, US Mobile, Tracfone, or
Simple Mobile often sell starter kits for $1 to
$5.
- These typically include a Nano-SIM and minimal service to
activate.
Example:
- Tello: Free SIM when signing up, plans starting at
$5/month.
- Mint Mobile: $0.99 starter SIM on Amazon or their
site.
- Tracfone: SIM kit for ~$1 at Walmart, Dollar
General, or online.
3. Amazon SIM Starter
Kits
- You can buy multi-carrier SIM kits (AT&T,
T-Mobile, Verizon options) for around $1 to $5.
- Often sold as a 3-in-1 (Nano/Micro/Standard sizes) just in case you
need a different size later.
If you want the absolute cheapest with no
commitment:
➡️ Look for a $1 prepaid SIM starter kit (Tracfone or
Tello is usually the best bet).