What This Means:

The power light on the Window Unit not being lit could mean several things, including the unit not being plugged in correctly, a defective Window Unit, a bad power supply or a bad wall outlet.

Step 1: Check to see if the power supply is plugged into the Window Unit and wall outlet correctly.

Step 2: Check to see if there is power to the outlet.

Step 3: Try exchanging the power supplies with the “Coverage Unit” to see if the power supply is defective.

If all of this fails it would appear that the Window Unit is faulty. Make arrangements to replace/exchange the CEL-FI System

If, after switching power supplies both system are functioning properly then your CEL-FI PRO system simply needed a restart. This is not something that should continue, but if it occurs frequently please reach out to your point of sale for support.

If you have power on your Network Unit with a white or otherwise abnormal colored display, please contact your point of sale for specific warranty support.

The power light on the Coverage Unit not being lit could mean several things, including the unit not being plugged in correctly, a defective Coverage Unit, bad power supply or a bad wall outlet.

Step 1: Check to see if the power supply is plugged into the Coverage Unit and wall outlet correctly.

Step 2: Check to see if there is power to the outlet.

Step 3: Exchange the power supply with the other unit to see if the power supply is defective.

If all of this fails it would appear that the Coverage Unit is faulty. Make arrangements to replace/exchange the CEL-FI System.

If, after switching power supplies both system are functioning properly then your CEL-FI PRO system simply needed a restart. This is not something that should continue, but if it occurs frequently please reach out to your point of sale for support.

Yes, and for a good reason!  CEL-FI is controlled by and operates as an extension of an operator’s network.  This is what allows CEL-FI (by regulatory authority) to boost signals about 1000x more than other solutions, and therefore cover very large areas even if the original network signal is weak.  And it works very well.

Broad-spectrum repeaters can cause interference and damage to networks, so operators have adopted a strict policy against the use of these legacy signal boosters on their own networks. However, CEL-FI (the only smart signal booster of its kind), is authorized for use by each carrier and allowed to transmit on their licensed spectrum without ruining things for anyone else.

Not all cellular operators use the same technologies, and we do not boost every technology available around the world. The CEL-FI systems will support 3G(UMTS/WCDMA), 4G(HSPA & HPSA+), and LTE technology of operators that have approved the use of CEL-FI on their network. You can reach out to your operator for more information on what specific technology they use.

If booster registration is required in your country, your system may arrive pre-registered or you may be asked to (it’s very simple).  See your product insert for details.

The process is very simple and just takes a minute by following the link below to your Operator’s Registration site.  If your system was provided by your Operator it may be preregistered (see product box insert).

Why is this being done?  Because cellular systems are protected assets of the Operators that own them.  Many boosters in the market cause problems for those networks (which means all of us using the networks too).  New FCC/Operator approved boosters are better and don’t cause problems, and CEL-FI is the only booster in a special class of boosters that allows 100 dB of signal gain (30 dB or 1000x the gain of all other boosters).

If there are no bars showing on the Window Unit it could mean that either there is a problem with Window Unit or that there is simply no 3G signal in the area where the window unit has been placed.

Do This:

Step 1: Check the status light on the Window Unit, if it is flashing red or solid red refer to sections on these errors.

Step 2: If no bars show on the display within 30 seconds then move the Window Unit into an area that has 3G coverage. It may help to verify the 3G coverage with the customer’s cell phone first to be sure.

When you Coverage Unit does not have bars but your Window Unit icon does, the system is still performing startup procedures.

If it takes longer than 45 minutes, please restart both units and make sure they are within sight of each other.

Try placing the units roughly 30 feet from each other as a test to confirm that the units will pair, if not make sure you have matching serial numbers.

Intermittent “Too Far” message? Frequent or intermittent issues can be related to heavy WiFi saturation in your home/office. Make sure that each unit is as far as possible from any access points or other WiFi enabled devices

When you have a 1, or 2 on the Coverage Unit, your system has established a connection but might not be (changed) working to the fullest ability. Try this… move your units further apart. If you have a particular spot in your home that you want coverage more than others try installing your CEL-FI system in reverse. Put your Coverage Unit where you need coverage the most then place your Window Unit at the furthest location where you can get at least 1 bar of service.

If you cannot get your systems further apart, and you have the coverage you need, a higher number is not always possible or necessary.

Changes to your CEL-FI placement can be made to improve your 3G/4G/LTE coverage.

The more bars shown on the Window Unit the better. Try moving the Window Unit to an area that has better 3G coverage. If the home/office has more than 1 floor. Upstairs is usually better than downstairs. Putting the Window Unit near a window or higher on a self often helps as well.

The bar display of the Coverage Unit is an indication of the area covered. More bars on the Coverage Unit means a larger area is covered. To increase the coverage area move the Coverage Unit farther away from the Window Unit. The less obstacles in their direct line of sight the further apart you can get them. The more bars on your Coverage Unit, the better the coverage area will be.

CEL-FI signal boosters are Operator specific, and will only boost one Operator’s channels at a time. Being Operator specific is one of the main reasons that we are network safe and can provide 100 dB of signal gain, and why we are the only signal booster approved by a growing number of Operators.

The CEL-FI RS1 is not compatiable with 4g or LTE. This unit will only boos the 3G (HSPA) signal.

There could be several reasons for this:

First you can try rebooting your phone near the Coverage Unit so it takes a fresh look at the available channels. Also verify that your phone is compatible with the channels that your CEL-FI model is boosting (maybe your handset is “unlocked” and actually does not fully support all your current Operator’s channels). iPhones can also show fewer “bars” of signal if the network is heavily loaded (learn more).

Note that CEL-FI RS1 and RS2 models do not support LTE. If your phone is LTE capable and therefore is not showing boosted service, if needed it is designed to switch over to non-LTE services when it needs to, such as in a call. This is true with or without CEL-FI and what matters is that now you have reliable service where you need it!

If you would like the benefits of LTE service as well, you can always upgrade your CEL-FI to a newer version that also supports LTE.

An external antenna has been detected and chosen (for Units with the External Antenna Option)

This is not a problem.  For a system with the external antenna option, CEL-FI may still choose an internal antenna if it’s performance is better. However, a lack of orange in this case may imply a faulty external antenna or feed.

There is a problem with the Window Unit that may be resolved by power cycling the unit.

To Power Cycle the Unit Do This:

Step 1: Unplug the power connector and wait at least 10 Seconds.

Step 2: Plug the unit back in.

The system is not yet configured.

Try This:

CEL-FI normally comes pre-configured.  Ask your CEL-FI distributor for Configuration Support.

Software Update in progress.

Try This:

Wait. The unit will reset and begin operating after the update is complete.

Cellular Signal too weak to boost.Try this… Walk around your home/office with your cellular device. Try to find a signal indoors with at least one consistent bar of 3G/4G (HSPA+). More bars is always better! Once you have found a usable signal place your Window Unit in this location

Your Coverage Unit is overheating. Please ensure that your Coverage Unit vents are clear of any blockage, and that the location of the unit allows free flow of air. Once your Coverage Unit has cooled down it will operate as normal. Normal operating temperature of the CEL-FI unit is 0-40 Celsius.

Note: Your Window Unit will continue to search for the Coverage Unit.

Your Window Unit is overheating. Please ensure that your Window Unit vents are clear of any blockage, and that the location of the unit allows free flow of air. If you have your Window Unit in an exceptionally warm area you may need to relocate the device to insure that the system does not continue to overheat. Once your Window Unit has cooled down it will operate as normal.

Normal operating temperature of the CEL-FI unit is 0-40ᵒ Celsius.

Specific to the CEL-FI RS2 Error 6. Your system has been locked by the carrier. Please reach out to your cellular provider for support.

Your system has been disabled by the mobile network operator. Contact your point-of-sale or cellular provider for further assistance.

Your Window Unit is too close to a cellular tower. This may result in a reduced output power (smaller coverage bubble) to limit network interference. Move your Window Unit to another location. You might need to move your system to the other side of your home/office.

Your Coverage Unit is “Too Close” to your Window Unit. Try moving the units much further apart, starting with the Coverage Unit. The more distance between the Window Unit and the Coverage Unit results in a larger coverage bubble provided by the Window Unit.

Your Coverage Unit is “Too Far” from your Window Unit. Try moving the units slightly (5-10 feet) closer together, starting with the Coverage Unit.

Intermittent “Too Far” message? Frequent or intermittent issues can be related to heavy 5GHz device saturation in your home/office. Make sure that each unit is as far as possible from any 5Hz enabled devices.

Your Window Unit will continue to search for the Coverage Unit, resulting in a flashing power indicator. Make sure that your Window Unit is operating normally, displaying a green (flashing or solid) power indicator and green signal strength bars. If you have a red power indicator (flashing or solid) on your Window Unit please reach out to your point-of-sale for further assistance.