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5GHz Network Visibility Issues with RTL8723BE 802.11 bgn Card on HP 250 G4 Laptop

sebaele22 18978 29
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Why can’t the HP 250 G4 with an RTL8723BE 802.11 bgn Wi‑Fi card see 5 GHz networks, and what wireless card can I replace it with?

The RTL8723BE is a 2.4 GHz-only card, so it will not detect 5 GHz networks [#16976846] To use 5 GHz you need a different Wi‑Fi adapter, but the HP 250 G4 has a BIOS whitelist, so only approved cards with matching subsystem IDs will work [#16977478][#18251865] The official service manual listed only 2.4 GHz options at first, but a later revision also lists Intel Dual Band Wireless-AC 3165 as compatible [#18251631][#18251657] In practice, one user reported that Atheros QCNFA435 worked in the HP 250 G4, while another reported that Intel AC 3165 did not, so results depend on the exact subsystem ID and BIOS whitelist entry [#18068206][#18252437] If you want the least risky route, use a supported HP-branded card from the whitelist or an external USB Wi‑Fi adapter; otherwise a BIOS mod would be needed to bypass the check [#16977478]
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  • #1 16976840
    sebaele22
    Level 30  
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    As in the topic of art RTL8723BE 802.11 bgn does not see the 5GHz network.
    It is visible on other devices and unfortunately not on the HP 250 G4 laptop.

    Please help

    greetings

    Moderated By jimasek:

    I improved the frequency units

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  • #2 16976846
    jimasek
    VIP Meritorious for electroda.pl  
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    The card does not support frequencies in the 5GHz band.
  • #3 16976901
    sebaele22
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    Hmmm, so I would have to buy a new card? If so, which one and will it approach this laptop without changing the BIOS version?
  • #4 16976908
    jimasek
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    Yes, you need to purchase a new wireless card. Unfortunately, I am not a laptop specialist, so I do not comment. I would look for the connector specification and compatibility with a given system.
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  • #5 16976918
    sebaele22
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    Thank you, maybe someone else will advise you on what card etc?
    And I would like to change the card because I can only see the 2.4Ghz network where the channels are heavily loaded and the manual channel change is a bit burdensome and when I set the TV to 5Ghz, I can't connect to the laptop :-( .
  • #6 16976980
    jimasek
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    sebaele22 wrote:
    TV on 5Ghz, I can't connect to the laptop.

    It all depends on the router model, some had the separation of clients connected to different bands or it is configurable, but rather in more serious devices.
  • #7 16977478
    dt1
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    HP laptops usually had a BIOS lock to detect "unauthorized" network cards. When replacing the internal card, it must be a card from HP printed with the appropriate SPS number xxxxxx-xxx. According to the service manual for this model, three models are supported:

    5GHz Network Visibility Issues with RTL8723BE 802.11 bgn Card on HP 250 G4 Laptop

    The model mates RTL8723BE comes complete with Bluetooth. RTL8188EE is also a 2.4GHz card. The BCM43142 is also a 2.4GHz card. So officially only 2.4GHz cards work in this model.

    A couple of google phrases and it turns out the 250 G4 has a whitelist in the BIOS, so any tab won't work. There are two things that can be done:
    - BIOS modification that bypasses checking if the card is HP approved. You can try to search on the forum https://www.bios-mods.com - you can find BIOSes for a large number of laptops with the list removed, although I did not check whether up to 250 G4 also. Installing a modified BIOS has certain risks (although if the BIOS is already checked by others and matched correctly for the computer, the risk is reduced). After such modification, any card that fits in the slot can be installed and it should work.
    - purchase of an external USB card (here is a problem in the form of a fairly large device hanging from the USB port, or you can buy a useless "nano" card, the range and capabilities of which are proportional to its size).

    However, you can also try to find a 2.4GHz channel that will perform better on the current card. Still, this seems to be the simplest solution (if possible).
  • #8 16979381
    sebaele22
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    Oh, that's not good, as for the channels, I have already changed it and after a few days it is loaded, then I have to change to another and so every time :-( .
    Maybe someone was playing bios modification in HP?
  • #9 16979417
    jimasek
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    If you use a laptop more stationary, it may be better to think about a USB card with a short extension cord. Of course, it is not very convenient for mobile work.
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  • #10 18068206
    mr_bl
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    I was also looking for a 5GHz WI-FI card for the HP G4 250 and after a long search I found it. If this information is useful to someone, the Atheros QCNFA435 card works with this laptop. I took it out of the Lenovo V310 and it works fine on HP. greetings
  • #11 18223764
    kumilek
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    without bios modification?
  • #12 18223811
    bobycob
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    I recently replaced the WiFi card on the HP Specter, I don't remember the model, Intel Core 3rd generation processor. I installed a card from an old Lenovo and it also went smoothly. So maybe this BIOS lock is no longer present, or it is only on models sold with the option without WiFi.
  • #13 18226081
    mr_bl
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    The bios lock in this model is 100%. I tested a lot of cards and only Atheros QCNFA435 worked for me.
  • #14 18251513
    Rebrov00
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    @mr_bl Atheros QCNFA435 was ordered by me, bios crashes error, but I recommend to buy a compatible Intel Dual Band Wireless-AC 3165 802.11 ac 1x1 WiFi + BT 4.0 Combo Adapter - which is due to the service manual, I am ordering it and let me know in days if everything is OK ok, and what the connection looks like.
    I would like to point out that on this realtek, which is originally also, I sometimes disconnect the connection, and now I have a 300mb / s link, the card supports up to 100 max under ideal conditions - an average of 80

    Added after 31 [minutes]:

    @ dt1 according to The service manual (I can't attach the link, but after entering the phrase "service manual hp 250 g4" in google, the first search in pdf) says that the intel I wrote above also fits.
    Is this some fake info? because I don't know whether to order anymore?

    The bios mod for this laptop is almost impossible to find from what I found.
  • #15 18251613
    dt1
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    I don't know which service manual you used. The topic is about the HP 250 G4 laptop, from the official manual on the manufacturer's website I took out all the cards, so in the context of this topic my list seems to be up to date. If the instruction you found is in a newer revision - it may have some additional items. I haven't searched from other sources so I can't judge if what you found will work. If it is from a reliable source (HP) - probably yes.
  • #16 18251619
    Rebrov00
    Level 7  
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    What I found is from the hp website, but applies to laptops:
    HP Notebook PC (Intel)
    HP 250 G4 Notebook PC
    HP 256 G4 Notebook PC
    Maintenance and Service Guide
    and is accurately described:
    Second Edition: August 2015
    First Edition: April 2015
    Document Part Number: 808734-002
  • #17 18251631
    dt1
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    Document 808734-002 lists exactly the three cards I mentioned earlier.
  • #18 18251657
    Rebrov00
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    yes, there are 3 that you mentioned, and one more: Intel Dual Band Wireless-AC 3165 802.11 ac 1x1 WiFi + BT 4.0 Combo Adapter

    Page 11 of the PDF to be exact

    I quote:
    Wireless Networking Integrated wireless options with single antenna (M.2):
    Compatible with 0iracast-certited devices
    Support for the following WLAN formats:
    ? Realtek RTL8188EE 802.11bgn 1x1 Wi-Fi Adapter
    ? Realtek RT8723BE 802.11bgn 1x1 Wi-Fi + BT4.0 Combo Adapter
    ? Broadcom BCM43142 802.11 bgn 1x1 Wi-Fi + BT4.0 HMC Combo Adapter
    ? Intel Dual Band Wireless-AC 3165 802.11 ac 1x1 WiFi + BT 4.0 Combo Adapter

    Added after 2 [minutes]:

    I have an hp 250 g4, I wanted to replace it with this Atheros but it does not work for me, I want to order this Intel because I found this info, but I do not know if it will work because the manual also applies to hp 256 g4.
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  • #19 18251686
    dt1
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    You can try it, there is a chance. Only buy from disassembling from an HP laptop, the chances then increase even more (you have a better chance of getting the correct SUBSYSTEM ID).
  • #20 18251688
    Rebrov00
    Level 7  
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    That's what I found, from HPka 250 g5, from disassembly just for PLN 15, so there will be no big loss.
    I will let other users know when I find out, if someone was going to buy this Atheros QCNFA435, it did not work for me, so there is a risk.
  • #21 18251865
    dt1
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    I unpacked the HP 250 G4 BIOS version F.29 and found in it the data that PROBABLY are a white list of hardware IDs passing the test. There are a little more of them than in the service manual. I cannot guarantee all of them will work. Perhaps not all entries in the list are active / used. Pay attention to the SUBSYSTEM ID. Even if the card is on an identical system but has a different Subsystem ID - it will be blocked. As you can see, there are a few of the same cards on the list, but with this parameter different.

    Spoiler:
    Code: text Expand Select all Copy to clipboard
    0bda:b001 Subsystem id: 00044fe8 [Realtek RTL8723BE]
10ec:8179 Subsystem id: 197d103c [Realtek RTL8188EE]
10ec:8179 Subsystem id: 804b103c [Realtek RTL8188EE]
10ec:b723 Subsystem id: 2231103c [Realtek RTL8723BE]
10ec:b723 Subsystem id: 804c103c [Realtek RTL8723BE]
   
14c3:7630 Subsystem id: 197c103c [Mediatek MT7630e - dawniej Ralink]
   
14e4:4315 Subsystem id: 137c103c [Broadcom BCM4312]
14e4:4315 Subsystem id: 137d103c [Broadcom BCM4312]
14e4:4315 Subsystem id: 1507103c [Broadcom BCM4312]
14e4:4315 Subsystem id: 1508103c [Broadcom BCM4312]
14e4:432b Subsystem id: 137f103c [Broadcom BCM4322]
14e4:432b Subsystem id: 1380103c [Broadcom BCM4322]
14e4:432b Subsystem id: 1509103c [Broadcom BCM4322]
14e4:432b Subsystem id: 1510103c [Broadcom BCM4322]
14e4:4353 Subsystem id: 1509103c [Broadcom BCM43224]
14e4:4353 Subsystem id: 1510103c [Broadcom BCM43224]
14e4:4357 Subsystem id: 145e103c [Broadcom BCM43225]
14e4:4359 Subsystem id: 2135103c [Broadcom BCM43228]
14e4:4359 Subsystem id: 000451f8 [Broadcom BCM43228]
14e4:4365 Subsystem id: 2230103c [Broadcom BCM43142]
14e4:4365 Subsystem id: 22d3103c [Broadcom BCM43142]
14e4:4365 Subsystem id: 804a103c [Broadcom BCM43142]
14e4:4727 Subsystem id: 145c103c [Broadcom BCM4313]
   
168c:002a Subsystem id: 3041103c [Atheros/Qualcomm AR928X]
168c:002a Subsystem id: 3042103c [Atheros/Qualcomm AR928X]
168c:002b Subsystem id: 303f103c [Atheros/Qualcomm AR9285]
168c:002b Subsystem id: 3040103c [Atheros/Qualcomm AR9285]
168c:0032 Subsystem id: 1838103c [Atheros/Qualcomm AR9485]
168c:0032 Subsystem id: 191a103c [Atheros/Qualcomm AR9485]
168c:0036 Subsystem id: 18e3103c [Atheros/Qualcomm AR9565/QCA9565]
168c:0036 Subsystem id: 217f103c [Atheros/Qualcomm AR9565/QCA9565]
   
1814:3290 Subsystem id: 18ec103c [Ralink/Mediatek RT3290]
1814:3290 Subsystem id: 191c103c [Ralink/Mediatek RT3290]
1814:539b Subsystem id: 18ed103c [Ralink/Mediatek RT5390R]
   
8086:0083 Subsystem id: 12058086 [Intel Centrino Wireless-N 1000]
8086:0083 Subsystem id: 13058086 [Intel Centrino Wireless-N 1000]
8086:0083 Subsystem id: 13068086 [Intel Centrino Wireless-N 1000]
8086:0084 Subsystem id: 13158086 [Intel Centrino Wireless-N 1000]
8086:0084 Subsystem id: 13168086 [Intel Centrino Wireless-N 1000]
8086:0888 Subsystem id: 42628086 [Intel Centrino Wireless-N 2230]
8086:08b1 Subsystem id: 40628086 [Intel Wireless-N 7260]
8086:08b3 Subsystem id: 00708086 [Intel Wireless-AC 3160]
8086:3165 Subsystem id: 40108086 [Intel Wireless-AC 3165]
8086:422b Subsystem id: 11018086 [Intel Centrino Ultimate-N 6300]
8086:422c Subsystem id: 13068086 [Intel Centrino Advanced-N 6200]
8086:4232 Subsystem id: 12018086 [Intel WiFi Link 5100 AGN]
8086:4232 Subsystem id: 12048086 [Intel WiFi Link 5100 AGN]
8086:4232 Subsystem id: 12068086 [Intel WiFi Link 5100 ABG]
8086:4232 Subsystem id: 13018086 [Intel WiFi Link 5100 AGN]
8086:4232 Subsystem id: 13068086 [Intel WiFi Link 5100 ABG]
8086:4235 Subsystem id: 10018086 [Intel Ultimate N WiFi Link 5300]
8086:4235 Subsystem id: 10048086 [Intel Ultimate N WiFi Link 5300]
8086:4235 Subsystem id: 11018086 [Intel Ultimate N WiFi Link 5300]
8086:4236 Subsystem id: 10118086 [Intel Ultimate N WiFi Link 5300]
8086:4236 Subsystem id: 11118086 [Intel Ultimate N WiFi Link 5300]
8086:4237 Subsystem id: 12118086 [Intel WiFi Link 5100 AGN]
8086:4237 Subsystem id: 12168086 [Intel WiFi Link 5100 ABG]
8086:4237 Subsystem id: 13118086 [Intel WiFi Link 5100 AGN]
8086:4237 Subsystem id: 13168086 [Intel WiFi Link 5100 ABG]
8086:4238 Subsystem id: 11118086 [Intel Centrino Ultimate-N 6300]
8086:4239 Subsystem id: 13118086 [Intel Centrino Advanced 6200 AGN]
8086:4239 Subsystem id: 13168086 [Intel Centrino Advanced 6200 ABG]


    Theoretically, there are two AC cards on this list (Intel AC 3160 and AC 3165), but you need to hit the appropriate identifier as long as the entries in this list are all active.
  • #22 18252081
    Rebrov00
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    i.e. assuming they are active, how do I check the correct NIC ID?
  • #23 18252437
    mr_bl
    Level 12  
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    As for the Intel Dual Band Wireless-AC 3165 - I tested this card in my laptop - also encouraged by the service manual and unfortunately it did not move. This was my first purchase. As I was very keen on AC networks, I tested a few more cards. Atheros QCNFA435 is the only card that has moved. Interestingly, for me, the BIOS did not display any errors when an incompatible card was installed. It's just that the laptop did not see other cards at all.

    My Laptop Product Number: M9S91EA # AKD - This is the i5-5200U version
    Currently installed BIOS: F.28

    Edit: Updated to F.29 and it works fine too
  • #24 18252610
    Rebrov00
    Level 7  
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    It seems to me that it is a matter of the Subsystem ID parameter, for me Atheros QCNFA435 throws a bios error - Wireless module not supported, Bluetooth module id 704 and something else ...
    I do not know the product number and I can not find it, but it is the i5 6200u / 8gb ram / r5 330m / 1000gb disk version, I have the bios in the F29 version, previously there was an old one, both have the same problem.
    I am a layman but I can change such crap as a network card, but messing around with bios, etc. is too much for me.
    I already have my hands dropping on these cards, I do not know whether to order this Intel or let it go? at home I have 300mbps, a 5ghz router gives so much in the phone, and a laptop is a waste of 80 ..
    I guess I'll have to give up.
  • #25 18252748
    dt1
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    Rebrov00 wrote:
    How do I check the correct NIC ID?

    It's best to ask the seller - you generally need to start your computer and check the exact hardware ID in the device manager. Only not every seller will want to :)

    In the device manager, you can check the exact ID - it's for a different card, but it works the same for each card - as you can see, VEN, DEV and SUBSYS:

    5GHz Network Visibility Issues with RTL8723BE 802.11 bgn Card on HP 250 G4 Laptop
  • #26 18252819
    Rebrov00
    Level 7  
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    @ dt1 I will ask the seller, I will check it and if I can, I will describe everything on the forum, for the future, for those who are looking, if someone has a changed card @mr_bl can send its parameters.
    VEN, DEV and SUSBYS, we will compare them with those extracted from the BIOS.
  • #27 18252847
    hp 15-ab250nw
    Level 1  
    Posts: 1
    Hello gentlemen
    I have an hp 15-ab250nw computer and I also have problems with the Realtek RTL8723BE 802.11 bgn Wi-Fi Adapter and I would like to replace it with a dual band.
    Where can I check if I have a whitelist in the BIOS, and if I do, how can I check the card models it allows. BIOS Version: Insyde F.77, 18/12/2015
    Thanks in advance
  • #29 18255468
    mr_bl
    Level 12  
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    @ Rebrov00
    Parameters for my card:

    PCI \ VEN_168C & DEV_0042 & SUBSYS_403517AA & REV_30
    PCI \ VEN_168C & DEV_0042 & SUBSYS_403517AA
    PCI \ VEN_168C & DEV_0042 & CC_028000
    PCI \ VEN_168C & DEV_0042 & CC_0280
  • #30 18657124
    tsm1974
    Level 7  
    Posts: 6
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    Rebrov00 wrote:
    It seems to me that it is a matter of the Subsystem ID parameter, for me Atheros QCNFA435 throws a bios error - Wireless module not supported, Bluetooth module id 704 and something else ...
    I do not know the product number and I can not find it, but it is the i5 6200u / 8gb ram / r5 330m / 1000gb disk version, I have the bios in the F29 version, previously there was an old one, both have the same problem.
    I am a layman but I can change such crap as a network card, but messing around with bios, etc. is too much for me.
    I already have my hands dropping on these cards, I do not know whether to order this Intel or let it go? at home I have 300mbps, a 5ghz router gives so much in the phone, and a laptop is a waste of 80 ..
    I guess I'll have to give up.

    and how? managed to replace and find a working dual-band card?
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Topic summary

✨ The RTL8723BE 802.11 bgn wireless card in the HP 250 G4 laptop does not support 5GHz networks, limiting connectivity to the 2.4GHz band. Users seeking to upgrade the card face challenges due to a BIOS whitelist that restricts compatible hardware. Recommended solutions include replacing the card with models like the Atheros QCNFA435 or Intel Dual Band Wireless-AC 3165, although success varies based on BIOS versions and subsystem IDs. Users are advised to check the service manual for compatible cards and consider USB adapters for stationary use. BIOS modifications may allow for broader compatibility but come with risks.
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FAQ

TL;DR: 0 % of Realtek RTL8723BE cards handle 5 GHz Wi-Fi [Elektroda, jimasek, post #16976846] “HP’s BIOS checks the SUBSYS ID before booting,” warns dt1 [Elektroda, 18251865] Swapping to an approved dual-band module (e.g., Atheros QCNFA435) can deliver up to 867 Mb/s 802.11ac throughput.

Why it matters: Faster, less-congested 5 GHz links lift real-world download speed by 2-4× on the HP 250 G4 laptop.

Quick Facts

• Factory-listed WLAN cards: RTL8188EE, RTL8723BE, BCM43142 – all single-band 2.4 GHz [Elektroda, dt1, post #16977478] • BIOS whitelist (F.29) contains 23 unique hardware IDs [Elektroda, dt1, post #18251865] • Confirmed success: Atheros QCNFA435 on product M9S91EA (i5-5200U) [Elektroda, mr_bl, post #18068206] • Confirmed failure: Same card triggers “Wireless module not supported, Bluetooth module 704” on i5-6200U unit [Elektroda, Rebrov00, post #18252610] • External USB 802.11ac dongles: €10–€25, 433–1200 Mb/s rated [Amazon listings, 2023].

Why doesn’t the RTL8723BE detect 5 GHz networks?

The RTL8723BE chip is a 2.4 GHz-only 802.11b/g/n adapter; its radio lacks 5 GHz circuitry, so those SSIDs never appear [Elektroda, jimasek, post #16976846]

Does the stock HP 250 G4 support dual-band Wi-Fi?

No. All three factory cards—RTL8188EE, RTL8723BE, BCM43142—operate solely on 2.4 GHz, limiting peak link speed to about 72–150 Mb/s [Elektroda, dt1, post #16977478]

Can I install any 802.11ac M.2 card if it fits physically?

Physical fit isn’t enough. If the SUBSYS ID isn’t on the whitelist, the laptop may halt with error 704 or hide the card entirely [Elektroda, Rebrov00, post #18252610]

What is the BIOS whitelist and why does it block upgrades?

HP embeds a list of allowed VEN/DEV/SUBSYS IDs. At boot the firmware checks the installed WLAN card; mismatches trigger error 704 or disablement to comply with regional certification [Elektroda, dt1, post #18251865]

How do I find a card’s hardware ID before buying?

  1. Ask the seller for a Device Manager screenshot. 2. Confirm VEN, DEV, SUBSYS match whitelist entries (e.g., “PCI\VEN_168C&DEV_0042&SUBSYS_403517AA”) [Elektroda, mr_bl, post #18255468] 3. Avoid generic listings lacking this detail.

Is BIOS modification a safe workaround?

Unlocked BIOS images remove the whitelist, but flashing carries brick risk and often voids warranty. Only proceed with a file already tested on the same laptop revision [bios-mods.com forum].

Should I just use a USB Wi-Fi dongle?

Yes if mobility isn’t critical. USB 802.11ac adapters cost ≈ €15 and bypass the internal whitelist entirely while reaching 433–1200 Mb/s theoretical rates [Amazon listings, 2023].

What speeds can I expect after a successful AC upgrade?

A 1×1 802.11ac card (e.g., QCNFA435) links at up to 867 Mb/s with a Wave-2 router—about 6× faster than the 150 Mb/s ceiling of RTL8723BE [Intel, 2020].

Edge case: what happens if the SUBSYS ID is close but not identical?

The laptop may boot but hide the adapter; Windows will show no new device, confusing users into thinking the card is dead [Elektroda, mr_bl, post #18252437]

How do I physically replace the WLAN card?

  1. Remove battery and back cover; ground yourself. 2. Unscrew the M.2 module, slide it out, detach antenna leads. 3. Insert new card, reconnect antennas, tighten screw, reassemble. Total time: ~10 minutes.
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