Recycling Cracked iPhone 4/4S from the U.S.A

For right now, we are only recycling  iPhone 4 and iPhone 4S with cracked LCD or back glass, the prices would be lower if the sides are also scratched.

We are willing to pay 100 to 150 USD for iPhone 4, 150 to 220 USD for iPhone 4S

Here are our requirements:

Accept defects: cracked/broken LCD, cracked back glass, and/or scratches.
Reject defects: Water Damage

Basic Requirements: Working mother board, can be power on, can make a test call, good signal, good camera, good speaker and microphone, good ESN.

Network Required :

For iPhone 4,  We required GSM model (UMTS/HSDPA/HSUPA (850, 900, 1900, 2100 MHz);  DO NOT want CDMA model (CDMA EV-DO Rev. A (800, 1900 MHz))

Optional: factory unlock

Prefer small storage such as 8GB and 16GB.

Shipping: No need for charger, power adapter, box and earphone. Just pack the phone very well with some bubble bags.

Ship them to my agent in America.

How is the procedure.

Please contact us first and send us a few pictures for all sides of phone, let us know if it is unlocked, what network it is, what price you are asking for, if we agree with the prices, you can invoice us via Paypal, and we will pay, then you can ship it to my agent in the U.S.A

cracked iPhone 4S broken iPhone 4 cracked iPhone 4


Original brand new and used cell phone docking, Micro USB connector, SIM card reader

If you are going a cell phone repair guy who need to replace a micro/mini USB connector or SIM card reader, you might want to keep these items in stock, however, there are so many models of micro USB connector and SIM card reader, how do you know that some of the micro USB connectors or SIM card readers are compatible with some other cell phone models, sometimes they are even compatible in different brands.

In Shenzhen, there is a place where a lot of these small items are sold in bulk, however you don’t need to buy thousands, you can buy only hundreds.


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What do you need to know when you are buying these small items for cell phone repair, they don’t call them small items, they call them spare parts for cell phoens.

And yes, in Shenzhen, there are a few buildings where these spare parts are being sold in different qualities and different quantities.

There are numbers of qualities.

1: 100% fully Original + brand new + Grade A + original factory soldering.

2. 100% fully Original + brand new + Grade A + home soldering.

3. 100% fully Original + brand new + Grade B + original factory soldering.

4. 100% fully Original + brand new + Grade B + home soldering.

5. 100% fully Original + disassembled from brand new phone+ Grade A.

6. 100% fully Original + disassembled from brand new phone+ Grade B.

7. 100% fully Original + used+ Grade A.

8. 100% fully Original + used+ Grade B.

9. 100% fully Original + used+ Grade C.

10. 100% fully Original + used+ not working.

11. Partially Original + Partially Copy + brand new + Grade A

12. Partially Original + Partially Copy + brand new + Grade B

13. Partially Original + Partially Copy + brand new + Grade C

14. Partially Original + Partially Copy + brand new + Not working

15. 100% Copy + brand new + Grade A

16. 100% Copy + brand new + Grade B

17. 100% Copy + brand new + Grade C

18. 100% Copy + brand new + Not working

How do Chinese people refurbish your cell phone?

As of today in 2013, most of the phones in the market are smart phones, and most of the smart phones have big displays, these displays are made with 3 main parts which are LCD module, digitizer and cover lens (top glass). A LCD module is just like your traditional phone display, a digitizer is also easy to be understood, if your digitizer is broken, you will not be able to use the touch function, no more input into your phone,  cover lens (top glass ) is a layer of glass, it usually covers the whole area on the top of your phone. As for the new models of cell phone like iPhone 5 and Samsung Galaxy S3, the LCD module and digitizer are built in one, they are not glued together.

Chinese people like to buy your broken cell phone screens assuming that the LCD module and digitizer are both working fine, only the top glass is cracked, if there is some defects such as bright spot or some kind of cloud, the price will be much less.

How can they do with these broken screens?

Because of these 3 parts (LCD module, digitizer and cover lens) are blued together with a very thick (0.17mm) layer of glue, they can put the screen on top of a heat plate to heat up the glue to soft, and use a small (0.1mm) stainless steel wire to remove the glue. These kinds of device is called LCD seperating machine or LCD/digitizer/glass seperator, it is very simple and very cheap.

The steel wire is moving from left to right, and from right to left automatically, and you can move it manually forward to cut the glue in between digitizer and cover lens, or digitizer and LCD module.

screen removal

After the cutting, you need to manually clean the glue that still remain on the digitizer or LCD.

The second device that I am going to introduce is for applying an OCA which is something like a double-sized adhesive tape. They call this device OCA laminator.

This device is also very simple, they use vacuum to suck LCD on one plate, and the OCA film on another plate, but you need to make 2 molds for your particular model, so that the alignment is perfect.

The one shown below is an OCA laminator for Samsung Galaxy S3. It is also called soft to rigid laminator to apply OCA on top of the digitizer.

OCA laminator


Thirdly and most importantly you want to put your new cover lens on it, you can buy this kind of cover lens from China for a better price.

This machine is quite expensive because you want to create a small vacuum environment for this job, and you don’t want to break the cover lens which is mainly glass so it is hard, not soft. We can just call this machine hard-to-hard laminator or cover lens laminator, or Rigid to Rigid laminator to apply glass on top digitizer.

cover lens laminator

Cover lens laminator is quite expensive.

Lastly, you need to remove the extra clave between cover lens and digitizer. You just put a few pieces of screens that are completed for the 3 steps mentioned above into this kind of oven thing, and after 15 to 20 minutes it automatically stops and you can open it and all the jobs are done.


You can also come to China and get some training before you purchase this series devices, and you can do this refurbishing job too.

You need to invest a little money on these devices and a cleaning room, if you have a lot of broken screens, you can earn the money back in a few days.

Rechargable portable LED lamp

This LED lamp is powered by a cell phone power bank which is a rechargable battery.

It can be customized at 10w, 15w or 20w, a regular rechargable battery is good for 6 hours usually.


portable LED lamp

Input voltage: DC9~24V
Power rating: 15W
Color temperature(CCT): 2700~10000
Shell material : Aluminum alloy



Headlight electrcaldate
Input voltage
Output current
Power rating
bettery data for battery
Input voltage
Working frequency
Output voltage
Output current
Input voltage
Luminance data
Luminance efficieny
80-90 lm/w
Luminous flux
1200-1350 lm
Central luminance
Effective luminance area
Color temperature(CCT
Color rendering index(CRI)
Luminance angle
Integrated data
Shell material
Aluminum alloy
Working temperature
Storage temperature
Physical data
Headlight betterysize size
Headlight lumineire size
Package size
Net weight
Gross weight

China is recycling your phones.

recycling phones Many people know that their phones are made in China, they all come from one city of China Shenzhen. But many people don’t know where their phones go when the phones are broken and recycled. The life of the phones is usually a couple years, even if they are still functional, but more and more phone are launched every year, and you want to catch up with the new technologies, so you throw your old phones. And people who are collecting the used phones will sell them to China.

Why does China want to collect your used phones?

Actually the government of China doesn’t want to get the used electronics, because phones recycling costs a lot of environment problems. However, there is a lot of profit in recycling phones, many people still get the used phones from Hong Kong to Shenzhen.

  1. They sort the phones in different brands and models, many of these used phone business people are specialized in a brand or a few models of phones.
  2. They repair the broken phones and sell them in the refurbished phone markets. There are a few refurbished phone markets in Shenzhen.
  3. They disassemble the phones if they are completely not functional, take them apart and sort the parts out.
  4. They sell the parts in batches, Many of the big shops in the cell phone part markets are specialized in certain parts for some brands. Usually the failure rate is 80%.
  5. They test the parts, if the parts are good, they call it “original used” and sell them in a high price.
  6. They sell the copy part of cell phones as well, if the parts are not easy to get and there is a demand for it in the market, they do reverse engineering and produce the parts on their own, usually the copy parts can’t be sold as much as the used, original good parts.
  7. They sell the original new but faulty parts. The original phone manufacturers do the Quality Control very well, the defective phones are not be sold to the consumers, but during the production, there must be a lot of failed phones, so they throw the detective phones away, Chinese get them and take them apart to get the parts. Usually the original new parts even if defective sell much more than the original used parts and the copy ones.

tongdiandiIn Shenzhen, there are a few buildings that sell used phones and used parts, you need to come here in person to see how much you like the phones or just the parts. Many overseas repairing centers come here to sell their broken phones and purchase some parts such as LCD, Touch screen, middle frame, back housing, keypad, buttons, flex cable, camera, sensor, earpiece, speaker, microphone, vibration motor, IM card holder, Micro USB connector, Micro SD card holder, SIM card slot, and so on. If you come to Shenzhen markets, you will find the prices here are much better than you can find online, that is why many repairing shops come directly to buy the parts that meet their quality standard. However, most of the shop owners here do not speak English, it is more efficient if you have a local guide to help you, not just for better communication, but also for negotiation and arrangement, as well as shipping.