SKU: 78760599385

BY U301 ROM Assistant MacBook USB_C Chip Data Read Write Repair Tool

$117.80 $130.89
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Ships within 48 hours · Estimated delivery Sep 16 - Sep 21

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Description

BY U301 ROM Assistant MacBook USB_C Chip Data Read Write Repair ToolBY U301 Data Backup Write Read Assistant Tool for MacBook. BY U301 Data Assistant suppoor read and write USB_C ROM chip data, write the ROM chip data (CD3215 and CD3217). U301 Features: 1. Used to read and write USB_C ROM chip data (CD3215 and CD3217) 2. U301 contains the original ROM data of the 2016 2020 USB_C chip, a total of 26 3. The Type_C circuit of the MacBook adopts the 5V 20V boost process. If the ROM data of USB_C is damaged, the

BY-U301 Data Backup Write Read Assistant Tool for MacBook. BY-U301 Data Assistant suppoor read and write USB_C ROM chip data, write the ROM chip data (CD3215 and CD3217).

U301 Features:
1. Used to read and write USB_C ROM chip data (CD3215 and CD3217)
2. U301 contains the original ROM data of the 2016-2020 USB_C chip, a total of 26
3. The Type_C circuit of the MacBook adopts the 5V-20V boost process. If the ROM data of USB_C is damaged, the motherboard will only have a 5V power supply.
4. When the power supply of the MacBook motherboard changes from 0V to 5V, it means that the USB_C ROM data is damaged.
5. Use the U301 tool to write the ROM data of the corresponding model, so that the motherboard power supply is normally boosted to 20V

Applicable models:
1. Applicable to all MacBooks with Type_C interface from 2016 to 2020
2. The USB_C chip of the MacBook from 2016 to 2018 uses CD3215
3. The USB_C chip of MacBook from 2019 to 2020 uses CD3217

The board number, ROM chip and year corresponding to the machine
A1706 820-00239-A U2890, A1706 820-00239-A UB090 2016
A1706 820-00923-A U2890, A1706 820-00923-A UB090 2017
A1707 820-00281-A U2890, A1707 820-00281-A UB090 2016
A1707 820-00928-A U2890, A1707 820-00928-A UB090 2017
A1708 820-00875-A U2890 2016
A1708 820-00840-A U2890 2017
A1932 820-01521-02 U2890 2018
A1989 820-00850-A U2890, A1989 820-00850-A UB090 2018
A1990 820-01041-A U2890, A1990 820-01041-A UB090 2018
A1990 820-01814-01 U2890, A1990 820-01814-01 UB090 2018
A2141 820-01700-A U2890, A2141 820-01700-A UB090 2019
A2251 820-01949-07 U3060, A2251 820-01949-07 UB260 2020
A2159 820-01598-A U2890 2019
A2179 820-01958-A U3060 2020
A2289 820-01987-06 U2890 2020
A2337 820-02016-A UF260 2020
A2338 820-02020-A UF260 2020

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 78760599385

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4.4 ★★★★★
Based on 13 reviews
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J
Verified Purchase
Jamie Leigh
Alexandria, US
★★★★★ 5
Clean up dirt you didn’t know you had
Style: Steam Starter
This floor steamer is perfect for quick cleanups! It’s incredibly lightweight and easy to maneuver around furniture without any strain. I love the easy-change pads—they secure firmly but pop right off when you're done. While the water tank is on the smaller side, it heats up almost instantly, so refills aren't a big deal. The only real downside is the lack of an "off" switch; you have to unplug it to stop the steam, which is a bit of a hassle. Aside from that, it’s a powerful, no-fuss tool that really gets the job done!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 4, 2026
B
Verified Purchase
BOSTON
Bozeman, US
★★★★★ 3
meh!
Style: Steam Starter
I used to have a bissell steam cleaner for floors and it took a second to heat up and once it did, it steamed continually and I could turn it up or down or off. Sadly, it started to leak so I purchased this one. This is not at all like the one I had. It doesn't steam continually and the only way to turn it off is to unplug it. It doesn't clean as well as the one I had. I'm not a fan of this one. But sadly I threw away the box so now I'm stuck with it. It says you have to pump it to have it steam, almost like an iron for clothing, it steams for a second then stops.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 24, 2026
M
Verified Purchase
melissa
San Leandro, US
★★★★★ 5
Best steamer on market hands down
Size: Standard, Size: Standard
If you want to really deep clean your home then this will be your best friend. Comes with several different attachments which is great. It’s light weight so not heavy to carry around. So easy to put together or change attachments. They give you a measuring cup for the exact amount of water you need with a funnel so no mess putting water in. Heats up super fast which is awesome. Like i said light weight but strong steamer. The first thing i used it on was my oven which is 8 or 9 years old. From cooking especially holidays there was grease etc on it. I used the oven cleaners that say removes grease with one wipe Nope it those products actually ruined top of my stove made it dull and even other parts almost a rust look which I am not happy with. Wish I knew about this amazing machine before I ever used the store bought oven cleaner. Like I said it comes with several attachments ones for steaming your floors amazing. An attachment for grout also did an amazing job I was shocked my shower looks brand new my floors look brand new also. Another attachment is for steaming shower doors, walls, furniture and clothes works awesome. Another attachment for hard to reach places super amazing. Oh and the handle can come apart so you can make it long for when your steaming floors then make it smaller to carry around to do all the other steaming you want to do. Best part is that it didn’t break the bank the price was well worth it. I first saw this steamer on TickToc like with other items I have bought. But my go to place to see if these items are on Amazon cause Amazon is my go to place to shop, also the prices are always cheaper and you can get it in 2 days or other things I bought within hours. Where tik tok it takes weeks to get and always more expensive. So thank you Amazon for being an amazing company. If i could give more stars for this steamer I would give it a 20 star that’s how great it works. One thing I forgot to do was take a picture of my stove before but I did after. You can see where those store products ruined areas I mentioned. That was not caused by this amazing product.
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Reviewed in the United States on October 16, 2025
Y
Verified Purchase
Yesha
Pawtucket, US
★★★★★ 5
Great all-in-one steam cleaner
Size: Standard
The Schenley 19-in-1 Steam Mop is super versatile and easy to use. It heats up quickly and the steam is strong enough to clean floors, grout, and bathroom surfaces without any chemicals. I love how easily it switches to a handheld steamer—feels like multiple tools in one. The build is sturdy and it maneuvers well. Overall it’s a great value and works really well.
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Reviewed in the United States on April 27, 2026
M
Verified Purchase
Mundo
Battle Creek, US
★★★★★ 5
Great Lightweight Steam Mop!
Size: Compact, Size: Compact
I’m really happy with the Schenley Steam Mop. It heats up in about 15 seconds and is ready to go almost instantly. It works well on my hardwood and tile floors, removing everyday dirt without needing any chemicals. It’s lightweight, easy to maneuver, and I love that it stands on its own. The washable pads and adjustable steam modes are a nice bonus. The water tank is a bit small, but for regular cleaning it’s perfect. Great value and very convenient for quick, effective cleaning!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 14, 2026

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